几何
三角形、圆、解析几何与证明题。
-
plot the image of figure abcdefghijkl after a dilation with scale facto…
Plot the new vertices obtained by multiplying the $x$ - and $y$ - coordinates of each original vertex by $\frac{1}{2}$ and then connect them to form the dilated figure.
-
a scale drawing of a house has a scale of 1/4 in. to 2 ft. if the width…
# Explicación: ## Paso1: Establecer la proporción La escala es $\frac{1}{4}$ pulgada : 2 pies. Sea $x$ el ancho real de la casa. Entonces la proporción es $\frac{\frac{1}{4}}{2}=\…
-
a scale drawing of a house has a scale of $\frac{1}{4}$ inch to 3 feet.…
# Explicación: ## Paso 1: Establecer la proporción La escala es $\frac{1}{4}$ pulgada : 3 pies. Sea $x$ el ancho real de la casa en pies. La proporción es $\frac{\frac{1}{4}}{3}=\…
-
question 26 of 26 a triangular brace has an angle measure of 30 degrees…
C. The angle opposite the side measuring 6 inches has one solution of approximately 22 degrees.
-
a blueprint of a building has a scale of 1 inch to 15 feet. if the actu…
# Explicación: ## Paso1: Establecer la proporción Sea $x$ la longitud en el plano de arquitectura. La proporción es $\frac{1 \text{ pulgada}}{15 \text{ pies}}=\frac{x}{225 \text{ …
-
a blueprint of a building has a scale of 1 inch to 10 feet. if the actu…
# Explicación: ## Paso 1: Establecer la proporción La escala es 1 pulgada : 10 pies. Sea $x$ la longitud en la planta en pulgadas y la longitud real es 50 pies. Entonces la propor…
-
20. given a(4, 2) and b(-1, y) and the graph of line t below, find the …
\(y = 7\)
-
the figure on the right is a scaled copy of the figure on the left. ans…
$\frac{1}{2}$
-
parallel lines r and s are cut by two transversals, parallel lines t an…
2
-
parallel lines r and s are cut by two transversals, parallel lines t an…
2
-
in the diagram, how many angles are supplementary but not adjacent angl…
one
-
question 5 of 21 which of the following are examples of helpful ways of…
D. none of the above
-
which angles are alternate interior angles? ∠3 and ∠5 ∠1 and ∠7 ∠3 and …
\(\angle3\) and \(\angle5\)
-
statements reasons 1. g || h 1. given 2. ∠1 ≅ ∠2 2. corresponding angle…
C. converse corresponding angles theorem
-
in the diagram, which angle is an alternate exterior angle with angle 4…
7
-
parallel lines s and t are cut by a transversal, r, as shown. what is t…
\(42^{\circ}\)
-
given the information in the diagram, which theorem best justifies why …
converse of the same side interior angles theorem
-
parallel lines r and s are cut by two transversals, parallel lines t an…
2
-
5. select all the figures that could represent an image of the given fi…
The coordinates of the vertices of the image are $(6,5),(5,1),(8,2)$
-
which lists all the lines that are parallel to line s? 89° 89° 91° 89° …
only line $t$ and line $v$
-
parallel lines s and t are cut by a transversal r. which angles are cor…
A. ∠3 and ∠7
-
parallel lines r and s are cut by two transversals, parallel lines t an…
B. ∠2 and ∠10
-
what is the measure of angle 1? 92° 1 2 86° 88° 90° 92°
92°
-
which correctly describes how to determine the measure of angle 1?
The measure of angle 1 is 105°.
-
∠2≅∠4 ∠4≅∠8 ∠6 + ∠7 = 180° ∠3 + ∠4 = 180°
$\angle2\cong\angle4$
-
parallel lines s and t are cut by a transversal r. which angles are alt…
∠2 and ∠8
-
parallel lines s and t are cut by a transversal, r. if the measure of a…
B. 68°
-
algebra 2 simplifying radicals review simplify; show your work to recei…
1. $5\sqrt{3}$ 2. $8$ 3. $4\sqrt{5}$ 4. $4\sqrt{2}$ 5. $6$ 6. $3\sqrt{5}$ 7. $2\sqrt{3}$ 8. $4\sqrt{3}$ 9. $3\sqrt{3}$ 10. $2\sqrt{2}$
-
figure b is a scale copy of figure a. circle the scale factor that was …
$\frac{1}{2}$
-
which angles are alternate interior angles with angle 3? ∠5 and ∠13 ∠7 …
\(\angle7\) and \(\angle15\)
-
1-5 reteach to build understanding conditional statements 1. a square h…
1. - Conditional: If a quadrilateral has four congruent sides and four right angles, then it is a square. - Converse: If a quadrilateral is a square, then it has four congruent si…
-
what are the converse, inverse, contrapositive, and biconditional of th…
1. Converse: If the animal has wings, then the animal is a bird. 2. Inverse: If the animal is not a bird, then the animal does not have wings. 3. Contrapositive: If the animal doe…
-
find the value of z. show your work here z =
$z = 9$
-
what is the measure of angle a in degrees? find the value of z.
\(a = 97\)
-
for the following intersection, the measurements of the indicated angle…
$m\angle s = 42^{\circ}$ $m\angle t = 138^{\circ}$
-
find the value of k. for the following intersection, the measurements o…
$k = 5$ $m\angle s=42^{\circ}$ $m\angle t=138^{\circ}$
-
if ∠a and ∠c are supplementary and m∠c = 145°, solve for m∠a.
$35$
-
for the following intersection, the measurements of the indicated angle…
$m\angle c = 37^{\circ}$, $m\angle d = 53^{\circ}$
-
what is the measure of the angle of elevation from point l to point j? …
$37^{\circ}$
-
determine whether the triangles are congruent. note the triangles are n…
Not congruent
-
identify the angles and sides that are congruent between the two shapes…
$\angle R\cong\angle N$ $\angle M\cong\angle Q$ $\overline{QR}\cong\overline{MN}$ $\overline{MO}\cong\overline{PQ}$
-
identify the angles and sides that are congruent between the two shapes…
$\angle D\cong\angle C$ $\overline{AB}\cong\overline{EF}$ $\angle B\cong\angle E$ $\overline{BC}\cong\overline{DE}$
-
quadrilaterals that have two pairs of parallel sides are called paralle…
The quadrilaterals with two pairs of parallel sides (parallelograms) should be selected and dragged to the target area. Without seeing the actual shapes clearly, in general, if a …
-
a car is traveling up a steep ramp to a parking garage. the ramp is 445…
$10^{\circ}$
-
quadrilaterals that have two pairs of parallel sides are called paralle…
The quadrilaterals with two pairs of parallel sides from the ones shown (assuming the second and fifth shapes from the left are parallelograms and rectangles respectively) are the…
-
find the value of y.
\(\frac{175}{6}\)
-
quadrilaterals that have two pairs of opposite equal sides are called p…
The first, second, and sixth quadrilaterals from the top in the yellow - box.
-
question 25 of 25 line s is the perpendicular bisector of $overline{jk}…
A. \(JL = KL\) B. Line \(s\) is perpendicular to \(\overline{JK}\) E. Point \(L\) is the midpoint of \(\overline{JK}\)
-
name all of the angle(s) in the diagram that are adjacent and congruent…
C. \(\angle BDG\)
-
∠efg and ∠gfh are a linear - pair, m∠efg = 2n + 19, and m∠gfh = 4n + 29…
$m\angle EFG = 63^{\circ}$, $m\angle GFH = 117^{\circ}$
-
in the diagram, m∠acb = 59. find m∠ace. notice that ∠ace and ∠acb form …
\(121^{\circ}\)
-
in the diagram, m∠acb = 59. find m∠ace. m∠ace = □°
$31$
-
question 14 of 25 if ∠avb has a measure of 70° and vm is its angle bise…
D. 35°
-
bd bisects ∠abc. solve for x and find m∠abc. m∠abd = 5x - 8, m∠cbd = 2x…
x = 5, m∠ABC = 34
-
4. use the equation to find the value of x. \\(\\frac{x}{5}+20 = 60\\) …
For the first part: $x = 200$, $m\angle FJI=60^{\circ}$ For the second part: Equation: $\frac{x}{7}+40 = 90$, $x = 350$
-
∠efg and ∠gfh are a linear pair, m∠efg = 5n + 15, and m∠gfh = 2n + 11. …
$m\angle EFG = 125^{\circ}$ $m\angle GFH = 55^{\circ}$
-
2. a piece of cardboard is cut in an l - shape as shown below. find the…
$75$ $cm^2$
-
a 12 - foot ladder is placed 4 feet away from a house as shown. what is…
$x\approx71^{\circ}$ To check safety: Since the manufacturer states that the angle $x$ should be between $70^{\circ}$ and $75^{\circ}$, and $70^{\circ}<71^{\circ}<75^{\circ}$, the…
-
area of composite shapes practice worksheet 1. find the area of the sha…
$12$ $cm^{2}$
-
for exercises 11 - 14, find the distance between each pair of points. 1…
11. 7 12. 12 13. 13 14. 10 15. $ST = 2MT$ 16. 8.5
-
for exercises 6 - 9, find the coordinates of each point described in re…
11. 7 12. 12 13. 13 14. 10 15. $ST = 2MT$
-
which sentence from \the world on turtles back\ best illustrates why th…
The woman placed the dirt on Turtle's back and performed a ritual to create the earth.
-
question 10 (10 points) (01.03 hc) read the excerpt from richard connel…
Three figurative language devices are simile, metaphor, and personification. The mood is suspenseful and dangerous. Figurative language creates this mood by emphasizing Rainsford'…
-
the triangle abc is a dilation of the triangle abc. what is the scale f…
$\frac{1}{4}$
-
the triangle lmn is a dilation of the triangle lmn. what is the scale f…
$\frac{1}{5}$
-
the triangle uvw is a dilation of the triangle uvw. what is the scale f…
$\frac{1}{5}$
-
10) triangle abc has coordinates a (3, 9), b (5,1) and c (9, 5). d is t…
a) $D=(4,5)$, $E=(6,7)$ b) (Graphing part is best done on paper or using a graphing tool. Plot $D(4,5)$ and $E(6,7)$ and label them.) c) $2\sqrt{2}$
-
find the distance between each set of points (round to 2 dp if needed, …
7) $5$ 8) $\approx10.05$ 9) a) $G(-3,1),H(2,4),d\approx5.83$ b) $K(5,5),L(7,-2),d\approx7.28$
-
part 3: distance using formula only find the distance between each set …
7) 5 8) $\approx10.05$ 9) a) $\approx6.71$ 9) b) 5
-
the length of a rectangle is 4 m longer than its width. if the perimete…
$140$
-
the length of a rectangle is four times its width. if the perimeter of …
length: 24 yd width: 6 yd
-
1. △abc is equilateral. is △abd equilateral? explain your answer. what …
$\triangle ABD$ is not necessarily equilateral. Deductive reasoning is used. ### 2.
-
answer the questions below. (a) the area of a rectangular field is 5141…
(a) 97 m (b) 87 cm
-
algebra in the figure, $overrightarrow{kj}$ and $overrightarrow{km}$ ar…
$83$
-
4. find the slope of the following triangles. round to the nearest hund…
For triangle A, the slope is 4. For triangle R, the slope is approximately 5.33. For triangle C, the slope is approximately 2.71.
-
your answer is incorrect. the perimeter of the pentagon below is 55 uni…
$YZ = 15$
-
the circle graph shows the most important problems for the 19,006,721 h…
B. 1,900,000
-
20. (06.04 mc) the length of a rectangle is represented by the function…
$(L\cdot W)(x)=28x^{3}-16x^{2}+8x$
-
20. (06.04 mc) the length of a rectangle is represented by the function…
$(L\cdot W)(x)=12x^{3}-18x^{2}+15x$
-
the length of a rectangle is represented by the function l(x)=4x. the w…
$(L\cdot W)(x)=12x^{3}-18x^{2}+15x$
-
the perimeter of the rectangle below is 130 units. find the length of s…
$38$
-
3. you are travelling home on a bike and have a choice of two routes. t…
The slope of the first route is approximately $0.23$. The slope of the second route is $0.23$. The first route might be a better choice because it has a shorter horizontal distanc…
-
write the coordinates of the vertices after a dilation with a scale fac…
The new coordinates of \(F\) are \((-10,10)\), of \(G\) are \((8,10)\) and of \(H\) are \((-10,-8)\)
-
the perimeter of the rectangle below is 130 units. find the length of s…
38
-
write the coordinates of the vertices after a dilation with a scale fac…
The new coordinates of \(T\) are \((-2,-2)\), the new coordinates of \(W\) are \((-2,-1)\), the new coordinates of \(V\) are \((2,-1)\), and the new coordinates of \(U\) are \((2,…
-
are you ready for more? triangle b is a scaled copy of triangle a with …
1. $\frac{1}{2}$ times 2. $\frac{1}{4}$ times 3. $(\frac{1}{2})^n$ times 4. Smaller, because the scale factor $\frac{1}{2}<1$.
-
write the coordinates of the vertices after a dilation with a scale fac…
The coordinates of Q after dilation are \((0,1)\) and the coordinates of R after dilation are \((1,1)\)
-
7. (06.02 mc) the following table shows the length and width of a recta…
10x + 4; the answer is a polynomial
-
if m is the midpoint of $overline{ab}$, $am = b + 6$, and $ab = 3b + 3$…
15
-
9. find pq, qr, and pr. pq = qr = pr =
$PQ = 9y-2$ $QR=14 + 5y$ $PR=14y + 12$
-
46. construct arguments write a proof. given: m∠tuv = 90 prove: x = 12 …
$x = 12$ ### 47.
-
write the coordinates of the vertices after a dilation with a scale fac…
The coordinates of \(L\) after dilation are \((-8,-4)\), the coordinates of \(M\) after dilation are \((-4,8)\), and the coordinates of \(N\) after dilation are \((0,-8)\).
-
use the graph to find the coordinates of the missing endpoint if (p) is…
7. $(8,4)$ 8. $(-7,-10)$
-
find the coordinates of the midpoint of a segment with the given endpoi…
The mid - point of segment with endpoints $T(3,1)$ and $U(5,3)$ is $(4,2)$. The mid - point of segment with endpoints $J(-4,2)$ and $T(5,-2)$ is $(0.5,0)$.
-
practice & problem solving find the value of each variable and the meas…
For problem 44: $x = 28$, angle measure is $78^{\circ}$. For problem 45: $x = 37$, angle measure is $106^{\circ}$.
-
2. find the distance between j(-2, 6) and k(-8, -3).
$3\sqrt{13}$
-
sonya wants to sew ribbon along each side of a square pillow. the expre…
48
-
part 3: distance using formula only find the distance between each set …
7) 5 8) 10.05 9) a) Co - ordinates assumed: $G(-3,2),H(2,4)$, Distance $\approx5.39$ 9) b) Co - ordinates assumed: $K(6,5),L(8,1)$, Distance $\approx4.47$
-
the expression 4cdotsqrt3{125} gives the perimeter of the base of a cub…
20
-
graph the image of rectangle stuv after a dilation with a scale factor …
The new rectangle has vertices \(S'(-2,1)\), \(T'(2,1)\), \(U'(2,2)\), \(V'(-2,2)\) which should be graphed on the coordinate - plane.