幾何
三角形、圓、解析幾何與證明題。
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determine if the triangles are similar. if so, state the postulate or t…
The triangles $\triangle AEB$ and $\triangle DEC$ are similar by the Side - Angle - Side (SAS) similarity theorem.
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what is the missing statement that will show that the following two tri…
EF≅GI
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a circle has an area of 78.5 square units. enter the area, in square un…
3.925
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1. assuming the following two triangles are congruent, solve for x if b…
$x = 10$
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determine which triangles are similar. a. 74° 81° b. 81° 24° c. 74° 25°
Triangles a and c are similar.
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in the figure below, m∠2 = 35°. find m∠1.
$55$
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4. which of the following statements is true about the congruent triang…
$\overline{AC}\cong\overline{EF}$
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in the figure below, m∠1 = 143°. find m∠2.
$37$
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in the figure below, m∠2 = 143°. find m∠1.
$37$
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3. true or false, the two triangles are congruent by sss. false true
false
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18 a quadrilateral has vertices at (1, 1) and (9, 9). it is reflected o…
No se puede proporcionar una respuesta numérica concreta ya que se pide utilizar una herramienta de dibujo (Connect Line tool) que no se puede ejecutar aquí. Pero se pueden descri…
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2. true or false, the two triangles are congruent by asa. true false
false
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8. the perimeter of the triangle shown is 17x units. the dimensions of …
\(17x = 30+7x\)
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1. true or false, the two triangles are congruent by sss.
false
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score: 0/1 penalty: none question click and drag the yellow circle in a…
Drag the yellow circle to create an angle between $16^{\circ}$ and $36^{\circ}$ in the counter - clockwise direction.
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4. classify the following angle. straight acute right obtuse
C. right
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what is the value, in feet, of h? h =
75
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the midpoint of $overline{ab}$ is $m(-1,0)$. if the coordinates of $a$ …
$(-8,4)$
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3. classify the following triangle based on its angles. acute obtuse sc…
Right
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2. true or false, the following two triangles are congruent.
False
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1. classify the following triangle based on its sides. isosceles scalen…
equilateral
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the midpoint of $overline{ab}$ is $m(6, - 3)$. if the coordinates of $a…
$(5,-2)$
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triangle cda is shown. create an expression in terms of x that represen…
$\frac{1}{2}x^{2}(1 + \sqrt{3})$
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a segment has endpoints p(-5,0) and q(3,8). point m is the midpoint of …
$- 3$
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question find the midpoint of the segment with the following endpoints.…
$(-3,8.5)$
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a point (2,3) is rotated 90° counterclockwise around the origin. its ne…
A. (-3,2)
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circle l is shown, where m∠klm = 120°. the circumference of circle l is…
$6.0\pi \approx 18.8$
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solve for x.
10
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which of the following transformations carry this regular polygon onto …
A. reflection across \(l\), B. rotation of \(60^{\circ}\) counterclockwise
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solve for x. k (78 - x)° o m p n (84 - 3x)° x = submit
$3$
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solve for x. (58 - 7x)° (54 - 3x)° x =
\(1\)
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solve for x.
$x = 5$
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lesson practice problems 1. large cheese pizzas cost $5 each and large …
1. $T = 5c + 6d$ 2. A. $m = 12(15)$ C. $4n = c$ E. $b = 2(3)+3(4.50)$
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what shape is made if the slopes of the sides of a quadrilateral are $\…
C. parallelogram
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solve for x. (6x + 11)° 77° x =
$11$
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solve for x.
$11$
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linda creates a circle with a center at (5,7). she wants the center of …
$a = 13 - 5$ $b = 17 - 7$
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a hexagon is rotated 120° clockwise about its center. which of the foll…
The hexagon turns around the center and maintains its shape
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how many points are needed to determine a line? * 1 2 3 4
B. 2
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graph the horizontal or vertical line y = 2. use the graphing tool to g…
Draw a horizontal line passing through the point $(0,2)$ on the $y$-axis. All points on this line have a $y$-coordinate of 2 regardless of the $x$-coordinate.
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which of the following is a rotation? * flipping a figure over the x - …
Turning a figure around a fixed point
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question find the midpoint of points a(7,0) and b(-1,-7) graphically. p…
$(3,-3.5)$
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which of the following transformations is a reflection? * rotating a fi…
Flipping a figure over a line
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a right triangle is rotated 270° clockwise around the origin. this is e…
90° counterclockwise
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solve for x. (4x + 38)° 118° x =
$6$
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an angle that measures exactly 180° is: * acute right obtuse straight
D. straight
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solve for x. (8x + 11)° 73° x =
$7.75$
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solve for x.
$9$
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an angle that measures less than 90° is: * right acute obtuse straight
B. acute
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translation moves a figure: * 1 point over a line of symmetry to a diff…
To a different location without rotating or flipping it
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two opposite angles formed by intersecting lines are: * 1 point adjacen…
B. Vertical
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a rectangular area is to be fenced in along a straight river bank as il…
The width of the fenced - in area is 30 feet and the length is 35 feet.
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which is an example of deductive reasoning? * all squares are rectangle…
All squares are rectangles. ABCD is a square. Therefore, ABCD is a rectangle.
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a polygon that has at least one diagonal outside the figure is: * 1 po …
C. Concave
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characterize the slope of the line in the graph. a. zero b. undefined c…
C. Negative
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triangle vwx is a right triangle. match each trigonometric expression w…
- $\cos(V)=\frac{15}{17}$ - $\cos(W)=\frac{8}{17}$ - $\sin(V)=\frac{8}{17}$ - $\sin(W)=\frac{15}{17}$ - $\tan(V)=\frac{8}{15}$
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a square with a vertex at (-3,2) is translated 5 units left and 2 units…
B. (-8,0)
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a gardener has 85 feet of fencing to be used to enclose a rectangular g…
(b) Length of the garden is 23.0 feet. (c) Dimensions of the square - shaped garden are approximately 16.2 feet by 16.2 feet. (d) Area of the square garden is approximately 262.4 …
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solve for c # 3 set up an equation that can be used to solve for the mi…
$c\approx10.3$
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a gardener has 85 feet of fencing to be used to enclose a rectangular g…
The width of the garden in part (a) is 11.5 feet. The length of the garden in part (a) is 23.0 feet. The area of the garden in part (b) is 264.5 square feet. The length and width …
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a gardener has 85 feet of fencing to be used to enclose a rectangular g…
(a) Length: 23.0 feet, Width: 11.5 feet (b) 264.5 square feet (c) Length: 23.0 feet, Width: 11.5 feet
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in the inscribed quadrilateral qrst, m∠q = 92° and m∠r = 76°. what is t…
104°
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a gardener has 85 feet of fencing to be used to enclose a rectangular g…
(a) Length = 23.0 feet, Width = 11.5 feet (b) Area = 264.5 square - feet
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determine the intersection points of the given graphs. (1,1) (-1,1),(0,…
(-1,1),(1,1)
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the range of a wireless speaker, in meters, is represented by the equat…
C. (4, 16)
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solve for a #1 type the steps used to solve for c in the triangle above…
$a = 9$
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prove that △abc ~ △def using the sss similarity criterion, where ab = 6…
$\frac{AC}{DF}=\frac{10}{15}=\frac{2}{3}$
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which of the following is true for all similar triangles? a. their area…
b. Their angles are equal, and their sides are proportional.
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what does it mean if the sides of two triangles are proportional? a. th…
d. The triangles are similar.
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two triangles share a 90° angle and a 45° angle. what can be said about…
For the first question: d. The triangles are similar. For the second question: c. They are similar by the AA criterion.
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circle a and circle b are both centered at the origin. the radius of ci…
A. dilatación
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in △abc ~ △def, if ab = 6, de = 9, and ac = 8, what is the length of df…
c. 12 ### Second sub - question
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april wrapped 2 identical gift boxes. each box was (l) inches long, (w)…
C. $2(2l + 2w + 4h)$
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this diagram shows three lines with some missing angle measures. comple…
Starting from the top - left and moving clockwise around the intersections: $110^{\circ},70^{\circ},110^{\circ},53^{\circ},127^{\circ},53^{\circ},127^{\circ}$
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5. this diagram is a straightedge and compass construction. which trian…
The blue triangle is equilateral.
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point l is located at (-6, 2) on the coordinate plane. point l is refle…
# Explicación: ## Paso 1: Reflexión sobre el eje y Cuando se refleja un punto $(x,y)$ sobre el eje $y$, la fórmula es $(-x,y)$. El punto $L(-6,2)$ al ser reflejado sobre el eje $y…
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find the measure of each marked angle. (7x - 27)° = □° (type integers o…
$(7x - 27)^{\circ}=36^{\circ}$ $(6x)^{\circ}=54^{\circ}$
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sketch a graph of the piece - wise function. $f(x)=\\begin{cases}x + 1&…
The graph with an open - circle at $(-2,-1)$ for $y=x + 1$ when $x < - 2$ and a closed - circle at $(-2,1)$ for $y=-2x - 3$ when $x\geq - 2$.
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line ab is parallel to line de. determine each angle measure. | angle |…
| Angle | Measure (degrees) | |--|--| | $\angle ACD$ | $65$ | | $\angle ECB$ | $65$ | | $\angle ACB$ | $80$ |
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find the measure of each marked angle. the larger angle measures 109°. …
The smaller angle measures \(71^{\circ}\), the larger angle measures \(109^{\circ}\).
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how is the square footage of any building area determined? multiply len…
multiply length by width
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draw the image of quadrilateral abcd under a translation by 1 unit to t…
Plot the points obtained by adding 1 to the x - coordinates and 4 to the y - coordinates of the vertices of quadrilateral ABCD and connect them to form the new quadrilateral.
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the complete transformation consists of two steps. which two types of t…
D. horizontal translation and vertical translation
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what is the length of the pre - image—the segment before the translatio…
The length of the pre - image and the image are equal. Without specific numerical values given in the problem, we can't give a numerical answer. But if the length of the pre - ima…
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has the measure of the angle changed after the translation? choose 1 an…
B. No
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what type of angle measures 36°? obtuse acute adjacent opposite
B. acute
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select all the statements that must be true. □ ∠a≅ ∠p □ ∠a≅ ∠q □ ∠b≅ ∠x…
- ∠A≅ ∠Q
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has the measure of the angle changed after the translation? choose 1 an…
B. No
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refer to the figure provided. what measurement is identified? o 2.3 cen…
2.8 centimeters
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are the two image lines parallel? choose 1 answer: a yes b no
B. No
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the area of a triangular sign is 42 ft². if the base of the sign measur…
6
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use this list of angles: 60°, 20°, 100°, 40°, 110°, 50°, 30°. your comb…
| Angle 1 | Angle 2 | Angle 3 | | ---- | ---- | ---- | | 100° | 50° | 30° | | 40° | 30° | 110° |
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the perimeter of a rectangle is 52 m. the length is 2 m more than three…
The width of the rectangle is 6 m and the length of the rectangle is 20 m.
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use the mp curve to fill in the total product column in the following t…
| Workers | Total Product | Marginal Product | Average Product | |---|---|---|---| | 0 | 0 | - | - | | 1 | 12 | 12 | 12 | | 2 | 28 | 16 | 14 | | 3 | 42 | 14 | 14 | | 4 | 52 | 10 |…
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if $ellparallel m$, and $overrightarrow{de}$ bisects $angle cdf$, find …
$65$
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the length of a rectangle is 8 inches more than the width. the perimete…
The width of the rectangle is 5 inches and the length of the rectangle is 13 inches.
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if $ellparallel m$, and $overrightarrow{de}$ bisects $angle cdf$, find …
$65$
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(d) problem 20: (first taught in lesson 31) if ℓ || m, and (overrightar…
$65$
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problem 21: (first taught in lesson 15) the measure of an angle is 22 g…
56
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2. two distinct lines, $ell$ and $m$, are each perpendicular to the sam…
B. Lines ℓ and n are perpendicular., C. Lines m and n are perpendicular., D. Lines ℓ and m are parallel.