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WorksheetsUnit 2 Test Review 8th grade math
Total questions: 46
Worksheet time: 4hrs 50mins
Rectangle A measures 12cm by 3 cm. Rectangle B is a scaled copy of Rectangle A. Select ALL measurements that could be Rectangle B.
6cm by 1.5cm
10cm by 2cm
13cm by 4 cm
80cm by 20cm
18cm by 4.5cm
Which of these sets of angle measures could be the three angles in a triangle?
40, 50, 60
50, 60, 70
60, 70, 80
70, 80, 90
In the picture lines AB and CD are parallel. Find the measure of angleBCD.
(a)
In the picture lines AB and CD are parallel. Find the measure of angleECF.
(a)
In the picture lines AB and CD are parallel. Find the measure of angleDCF.
(a)
Segment AB meausres 3cm. Point O is the center of dilation. How long is the image of AB after a dilation with scale factor 5?
(a)
Segment AB meausres 3cm. Point O is the center of dilation. How long is the image of AB after a dilation with scale factor 3.7?
(a)
Segment AB meausres 3cm. Point O is the center of dilation. How long is the image of AB after a dilation with scale factor 1/5?
(a)
Segment AB meausres 3cm. Point O is the center of dilation. How long is the image of AB after a dilation with scale factor s?
(a)
Triangle ABC is a scaled copy of triangle DEF. Side AB measures 12 cm and is the longest side of ABC. Side DE measures 8 cm and is the longest side of DEF. What is the scale factor to go from triangle ABC to triangle DEF?
(a)
Triangle ABC is a scaled copy of triangle DEF. Side AB measures 12 cm and is the longest side of ABC. Side DE measures 8 cm and is the longest side of DEF. What is the scale factor to go from triangle DEF to triangle ABC?
(a)
The diagram shows 2 intersecting lines. Find the missing value of a.
(a)
The diagram shows 2 intersecting lines. Find the missing value of b.
(a)
The diagram shows 2 intersecting lines. Find the missing value of c.
(a)
Quadrilateral ABCD is dialted with center (0,0), taking B to B'. What are the corrdinates of A'?
(1,4)
(-2,3)
(-4,6)
(6,-4)
Quadrilateral ABCD is dialted with center (0,0), taking B to B'. What are the corrdinates of C'?
(1,-1)
(2,-2)
(-2,2)
(4,0)
Quadrilateral ABCD is dialted with center (0,0), taking B to B'. What are the corrdinates of D'?
(-2,-3)
(-4,-6)
(0,-1)
(-6,-4)
Triangle A'B'C' is the image of triangle ABC after a dilation with center (0,0) and a scale factor of 2. Select all coordinates that are vertices of triangle A'B'C'.
(8,-2)
(8,-4)
(-4,-4)
(-2,2)
(-4,4)
Triangle A'B'C' is the image of triangle ABC after a dilation with center (0,0) and a scale factor of 1/2. Select all coordinates that are vertices of triangle A'B'C'.
(2,-2)
(2,-1)
(-1,-1)
(-1,1)
(-2,1)
Triangle ABC is a right triangle, and the measure of angle A is 28 degrees. What are the measures of the other two angles?
90
cannot be determined from the information given
152
62
Triangle DEF is a dilation of triangle ABC with scale factor 2. In triangle ABC, the largest angle measures 82 degrees. What is the largest angle measures in triangle DEF?
41
82
123
164
These two triangles are similar. What is the side length a?
(a)
These two triangles are similar. What is the side length b?
(a)
Jada claims that B'C'D' is a dialtion of BCD using A as the center of dilation. What are some ways you can convince Jada that her claim is not true?
The angle BCD is larger than the angle B'C'D'
You can't because Jada is right.
The figure doesn't touch point A.
Segment B'C' is longer than segment BC
Select each pair that are the angles of a pair of similar triangles.
Triangle A and Triangle B
Triangle C and Triangle D
Triangle E and Triangle F
Triangle G and Triangle H
These two triangles are similar. What is the measure of side a?
21
8
6
Unable to determine
These two triangles are similar. What is the measure of side b?
18
22.5
20
Unable to determine
The two triangles shown are similar. What is the value of d/c?
5/6
unable to determine
d/c
7/9
The diagram shows two nested triangles that share a vertex. Find the center of dilation that moves the larger triangle to the smaller triangle.
(0,0)
(-1,1)
(1,1)
Cannot be determined.
The diagram shows two nested triangles that share a vertex. Find the scale factor that moves the larger triangle to the smaller triangle.
1/6
5
1/5
Cannot be determined.
Of the three lines on the graph, which line has a slope of 1?
blue
orage
black
none
Of the three lines on the graph, which line has a slope of 1/5?
blue
orage
black
none
Of the three lines on the graph, which line has a slope of 1/2?
blue
orage
black
none
Of the three lines on the graph, which line has a slope of 2?
blue
orage
black
none
The figure shows two right triangles, each with its longest side on the same line. How long is segment XY?
(a)
The figure shows two right triangles, each with its longest side on the same line. What is the slope of the line?
(a)
What is the slope of the line through the two points (1,1) and (7,5)? If you need help graph these two points and look at their slope triangle.
2/3
3/2
5/7
0
What is the slope of the line through the two points (1,1) and (5,7)? If you need help graph these two points and look at their slope triangle.
2/3
3/2
5/7
0
What is the slope of the line through the two points (2,5) and (-1,-2)? If you need help graph these two points and look at their slope triangle.
7/3
-7/3
3/7
-3/7
What is the slope of the line through the two points (2,5) and (-7,-4)? If you need help graph these two points and look at their slope triangle.
1
-1
0
Not possible
What are the coordinates of point B?
(0,0)
(4,0)
(0,4)
(8,10)
What are the coordinates of point D?
(0,0)
(4,0)
(10,8)
(8,10)
Is the point (16,20) on the line?
Yes
No
I don't know
Is the point (20,24) on the line?
Yes
No
I don't know
Is the point (80,100) on the line?
Yes
No
I don't know
Select all the points that are on the line through (0,5) and (2,8).
(4,11)
(5,10)
(6,14)
(30,50)
(40,60)
