幾何
三角形、圓、解析幾何與證明題。
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a set of parallel lines is intersected by another line. find the unknow…
Measure of angle a = 128° Measure of angle b = 128° Measure of angle c = 128° Measure of angle d = 128°
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question 5 of 10 what is the sum of the measures of the exterior angles…
C. 360°
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question 4 of 10 the sum of the measures of the interior angles of a po…
D. $(n - 2)180^{\circ}$
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question 3 of 10 to the nearest degree, what is the measure of each ext…
C. 33°
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find the perimeter of the triangle with vertices at (-3, 2), (1, 2), an…
12
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completing proofs involvi given: m∠elg = 124° prove: x = 28 complete th…
$x = 28$
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question 2 of 10 what is the sum of the measures of the interior angles…
E. $1620^{\circ}$
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question 1 of 10 the measures of an exterior angle and the adjacent int…
B. False
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find the area of the shaded shape. 1 unit 1 unit square units
16
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write an expression that represents the perimeter of the figure below. …
$2l + 4m + p + n + r+q$
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completing proofs involving linear pairs given: m∠elg = 124° prove: x =…
$x = 28$
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using linear pairs to find an unknown value what is the value of x? (3x…
45
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write an expression that represents the perimeter of the figure below. …
\(2b + 2c + 2d+4e\)
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mcr3u unit 1 test due: september 24th @10:30am app / 18 t&i /23 1.calcu…
$8\sqrt{5}+6\sqrt{15}$ ### 2.
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lines ab and cd are parallel. find the measures of the three angles in …
\(m\angle A:42^{\circ}\) \(m\angle B:23^{\circ}\) \(m\angle F:115^{\circ}\)
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which is a pair of vertical angles? ∠vru and ∠srt ∠trs and ∠vrw ∠trv an…
$\angle TRV$ and $\angle WRU$
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write an expression that represents the perimeter of the figure below. …
$2x + 6y$
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practice with linear pairs and vertical angles. which angles are linear…
∠SRT and ∠TRV, ∠VRW and ∠WRS
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polygons a and b are shown below. prove that polygon a is congruent to …
Polygon A is congruent to Polygon B because their corresponding sides and corresponding angles are equal as determined by counting grid - square side - lengths and comparing angle…
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write an expression that represents the perimeter of the figure below. …
\(2l + 2m+2n + 8p\)
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part b rectangle pqrs is reflected across the y - axis and then transla…
C. (-6,7)
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section 2.1 complementary and supplementary angles complementary angles…
Complementary angles: two angles that have a sum of 90°. Supplementary angles: two angles that have a sum of 180°. Example 1: a) Supplementary b) Neither c) Complementary Adjacent…
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geometry prep: quiz 3 - 7 & 3 - 8 slope of a line $m = \\frac{y_2 - y_1…
1. C. (-3, 2) 2. $\frac{7}{4}$ 3. B. Perpendicular 4. A. $y = 4x + 16$
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this question has two parts. be sure to answer both parts of the questi…
## PART A Let's assume the original coordinates of the vertices of rectangle \(PQRS\) are known. When a point \((x,y)\) is rotated \(90^{\circ}\) counter - clockwise about the ori…
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choose all of the following statements that prove that y and z are para…
$\angle3\cong\angle7$, $\angle2\cong\angle6$, $m\angle3 + m\angle5 = 180^{\circ}$, $\angle3\cong\angle5$
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answer attempt 1 out of 2 p = submit answer
$2d + 6e$
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answer attempt 1 out of 2 p =
$P = 4n + 8p$
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write an expression that represents the perimeter of the figure below. …
$2t + 6u$
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read the questions below carefully. clearly show all work, including an…
The width of the rectangle is 8 ft and the perimeter of $\triangle ABC$ is 39.
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q1 - accelerated mathematics gr 8 | guided notes: describing sequences …
1. Transformation 2. Translation 3. Rotation 4. Reflection 5. Dilation 6. Scale factor
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the diagrams show a polygon and the image of the polygon after a transf…
Parallel lines will always be parallel after a reflection.
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question 25 of 25 to use the method of triangulation, you need measurem…
B. False
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question 24 of 25 knowing that sin 30° = $\frac{1}{2}$, what is a? a. 8…
C. 10
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hotspot label listen identify which drawing might be lins and which one…
Lin's: Drawing 1; Noah's: Drawing 2
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question 23 of 25 suppose a triangle has two sides of length 32 and 35,…
B. 58.04
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question 22 of 25 given any triangle abc with corresponding side length…
D. \(b^{2}=a^{2}+c^{2}-2ac\cos(B)\)
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lin and noah each created a scale drawing of their backyards. they live…
C. Lin's scale is 1 to 12, and Noah's scale is 1 to 36.
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question 21 of 25 what is cos 28°? a. 15/17 b. 15/8 c. 8/17 d. 8/15
A. $\frac{15}{17}$
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angle lmn has a measure of thirty - five degrees. the angle is rotated …
A. Thirty - five degrees
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question 20 of 25 a 15 - foot board rests against a wall. the angle tha…
C. $\cos 60^{\circ}=\frac{x}{15};x = 7.5$ feet
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if the length of the rectangular pool is 5.5 cm on the drawing, which e…
A. 1 cm to 5 m
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#4.) in the diagram below, $overline{cf}=x + 21$, $overline{ce}=18 + x$…
a. 8 C. 30 in.
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zane graphed a parallelogram on the coordinate grid shown. zane then tr…
When a figure is translated up 5 units, each y - coordinate of the vertices of the figure increases by 5 while the x - coordinates remain the same. Without seeing the actual optio…
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use the graph below to answer the question. quadrilateral pqrs will be …
A. $\overline{RS}$ will be parallel to $\overline{R'S'}$
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in the diagram below, hc bisects ∠fhb. if m∠ahf=(7x + 20)°, m∠fhc=(2x -…
# Explicación paso a paso: ## Paso 1: Utilizar la propiedad de la bisectriz Como $HC$ bisecta $\angle AHB$, entonces $m\angle AHC = m\angle FHC + m\angle AHF$. Sabemos que $m\angl…
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diego made the shape on the left, and elena made the shape on the right…
The smallest circle in Diego's design is congruent to the smallest circle in Elena's design.
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in the diagram below, ac bisects ∠bad. if m∠bac=(7x + 20)°, m∠dac=(2x -…
# Explicación: ## Paso 1: Usar la propiedad de bisectriz Como $AC$ biseca $\angle BAE$, entonces $m\angle BAC=m\angle EAC$. Y sabemos que $m\angle BAE=(7x + 20)^{\circ}$ y $m\angl…
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if p is the in - center of △jkl, find each measure. 3x + 14 9x - 34 x =…
\(PN = 38\) \(PO = 38\) \(PM = 38\)
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question 18 of 25 which of the following ratios correctly describes the…
A. $\frac{opp}{hyp}$
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in the diagram below, \\(\\angle abc=(7x + 80)^{circ}\\), \\(\\angle fb…
# Explanation: ## Paso 1: Establecer la ecuación Como $\angle ABE$ y $\angle EBC$ forman $\angle ABC$ y $\angle ABC = 180^{\circ}$, entonces $(7x + 80)+(2x - 8)=180$. ## Paso 2: S…
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question 17 of 25 use the law of sines to find the length of side c. a …
A. 44.93
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what does a dilation transformation do to a figure? a. turns it around …
1. c. Resizes it while maintaining its shape. 2. d. The figure is flipped across the origin and maintains its proportions.
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trapezoid wxyz is rotated 90° clockwise around point a to create trapez…
B. WX is equal to W'X'
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question 16 of 25 given any triangle abc labeled as shown, the law of s…
B. The ratio of the sine of an angle to the length of the opposite side is the same for all parts of the triangle.
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find the y - intercept and the x - intercept of the line below. (a) y -…
(a) y - intercept: [The y - value at x = 0 from the graph] (b) x - intercept: [The x - value at y = 0 from the graph]
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question 15 of 25 what is the approximate value of sin b? a. 2.29 b. 0.…
C. 0.40
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question 14 of 25 the law of cosines reduces to the pythagorean theorem…
B. False
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if p is the in - center of △jkl, find each measure. k 3x + 14 m p n j o…
\(PN = 128\) \(PO = 128\) \(PM = 128\)
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question 13 of 25 what is sin 67°? a. $\frac{12}{13}$ b. $\frac{5}{12}$…
A. $\frac{12}{13}$
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84.) in the diagram below, $cf = x + 21$, $ce = 18 + x$, $df = 2x + 13$…
a. 8
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question 12 of 25 which proportion could be used to find the length of …
B. $\frac{\sin31}{9.3}=\frac{\sin64}{b}$
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question 11 of 25 a boat is 400 feet away from one dock and 300 feet aw…
A. 383 feet
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question 10 of 25 an isosceles triangle has angle measures 55°, 55°, an…
C. 8.19 inches
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fill in the blank 1 point. if ∠1 and ∠2 are vertical angles, ∠2 and ∠3 …
# Explicación: ## Paso 1: Recordar la relación de ángulos complementarios Los ángulos complementarios suman 90°. Entonces, si $\angle2$ y $\angle3$ son complementarios y $m\angle3…
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question 9 of 25 in triangle abc, m∠a = 35°, m∠b = 65°, and a = 8.71. u…
D. 13.8
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what is the scale for the drawing of the aquatics center? all details o…
D. 1 to 100
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find the value of x and m∠tas (4x + 32)° (2x + 16)° c a t s m∠tas = cho…
$x = 22$ $m\angle TAS=60^{\circ}$
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question 7 of 25 according to this diagram, what is tan 74°? a. $\frac{…
D. $\frac{24}{7}$
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question 6 of 25 select the angle that correctly completes the law of c…
B. 62°
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graph the compound inequality on the number line. x>3 and x≤5
On the number line, there is an open - circle at 3, a closed - circle at 5, and a line segment between them.
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question 4 of 25 calculate the length a to two decimal places.
B. 13.68
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question 3 of 25 what is the approximate value of tan b? a 7 16 c a. 0.…
D. 2.29
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question 2 of 25 select the three basic trig ratios. a. cosine b. secan…
A. cosine, C. sine, D. tangent
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select the three basic trig ratios. a. cosine b. secant c. sine d. tang…
A. cosine, C. sine, D. tangent
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the scales on the maps of hershey park are all 1 to 80. which of the fo…
equivalent and appropriate: 1 foot to 80 feet, 1 inch to 80 inches, 1 inch to $6\frac{2}{3}$ feet equivalent but not appropriate: 1 kilometer to 80 kilometers, 1 mile to 80 miles …
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graph the compound inequality on the number line. x≤5 or x≥8
The number - line has a closed circle at 5 with shading to the left and a closed circle at 8 with shading to the right.
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question 1 of 25 use the law of cosines to find the value of cosθ. roun…
D. 0.35
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graph the compound inequality on the number line. x < -2 and x > -8
On the number line, place open circles at \(-8\) and \(-2\) and shade the region between them.
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question 10 of 10 the law of cosines is a² + b² - 2abcosc = c². find th…
D. 37
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suppose a triangle has sides 3, 4, and 6. which of the following must b…
B. The triangle in question is not a right triangle.
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question 3 determine if the triangles are congruent. if yes select the …
If the marked angles and side are as per the ASA criteria (two angles and the included side are congruent in both triangles), then Congruent: Yes, Theorem: ASA. If not, Congruent:…
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what does the law of cosines reduce to when dealing with a right triang…
C. The Pythagorean theorem
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question 7 of 10 in order to apply the law of cosines to find the lengt…
A. The lengths of two of the triangle's sides and the measure of the angle between them
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what is the result of applying a dilation with a scale factor of 3 to a…
1. B. The new rectangle has side lengths of 6 units and 12 units. 2. C. The size decreases, and the figure is flipped upside down.
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determine if the triangles are congruent. if yes select correct congrue…
Yes, SSS
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graph the compound inequality on the number line. x>2 and x≤5
On the number - line, there is an open circle at 2, a closed circle at 5, and the line segment between 2 and 5 (including 5 but not 2) is shaded.
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sitting on a park bench, you see a swing that is 60 feet away and a sli…
C. 41 feet
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question 5 of 10 select the angle that correctly completes the law of c…
D. \(23^{\circ}\)
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question 4 of 10 suppose a triangle has two sides of length 2 and 3 and…
B. \(\sqrt{7}\)
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determine if the triangles are congruent. if yes select correct congrue…
Congruent, SSS
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graph the compound inequality on the number line. x ≤ -7 or x > 0
The number - line has a closed circle at $x=-7$ with shading to the left of - 7 and an open circle at $x = 0$ with shading to the right of 0.
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points q, r and s all lie on line p where r is the mid - point and q an…
# Third problem: D. $(1,-2)$ # Second problem: B. 3
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calculate cosθ to two decimal places. 7 θ 8 11 a. 0.69 b. -0.07 c. -0.1…
A. 0.69
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question 1 of 10 the law of cosines can only be applied to right triang…
B. False
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graph the point (10, 1) on the coordinate plane.
Mark the point 10 units right on the x - axis and 1 unit up on the y - axis on the given coordinate plane.
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if a figure is rotated 90 degrees clockwise, what happens to a point at…
1. b. It moves to $(2, - 3)$. 2. b. Dilation
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the question has two parts. first, answer part a. then, answer part b. …
Part A: He welcomes her into her next phase of life, adulthood. Part B: As she lay on the ground, the man reached into his quiver, and he took out two arrows, one sharp and one bl…
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which point has coordinates (2, 4\\frac{1}{2})?
T
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a triangle with vertices at (1,2), (3,2), and (2,4) is reflected over t…
For the first question: C. (2,1) For the second question: B. The x - coordinates decrease by 5, and the y - coordinates decrease by 3.
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q2 which of these sequences of transformations would not return a shape…
A. Translate 3 units up, then 3 units down.