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Mathematics
9th -
10thgrade
Similar Triangles, Polygons, and Dilations
20 questions
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- 1. Multiple Choice
What are the coordinates of the pre-image B if the image is located at B' (-8, 4) after a dilation with a center at the origin with a scale factor of 2.
(0, 0)
(-4,2)
(-16,8)
unable to determine
- 2. Multiple ChoiceThe point (8, 12) was dilated to become point (2, 3). What was the scale factor?½¼42
- 3. Multiple Choice
The two polygons are similar. If 6 corresponds to 4, what is the value of x?
1
1.8
2
3.5
- 4. Multiple Choice
Find the missing side if you know the figures are similar and have the same orientation.
x = 9
x = 28
x = 7
x = 63
- 5. Multiple Choice
What is the scale factor from MNOP to ABCD?
2:3
1:2
3:2
2:1
- 6. Multiple ChoiceWhich triangle is similar to the above triangle ?ABCD
- 7. Multiple Choice
State the postulate that proves these triangles are similar and complete the similarity statement.
SSS
SAS
ΔFGH
ΔGFH
- 8. Multiple Choice
State the postulate that proves these triangles are similar and complete the similarity statement.
AA, ΔTVU
AA, ΔTUV
SAS, ΔVUT
Not similar
- 9. Multiple Choice
State the postulate that proves these triangles are similar and complete the similarity statement.
SSS, ΔVML
SSS, ΔVLM
SAS, ΔVML
SAS, ΔVLM
- 10. Multiple ChoiceAre the triangles similar?YesNo
- 11. Multiple ChoiceDetermine if the triangles are similar. Justify.Yes, by SSS.Yes, by SAS. Scale Factor is 1:2.Yes, by SAS. Scale Factor is 3:1.No, not similar.
- 12. Multiple Choice
Triangle ABC will be dilated by a scale factor of 1/2 about the point (-4, -1). What will the coordinate of B' be?
(0, 1.5))
(-2, 2)
(-2, 1)
(-6, -3)
- 13. Multiple Choice
Which is the center point is the center of dilation?
A
B
C
D
- 14. Multiple Choice
Which triangles are similar to triangle A?
B
C
Both
None
- 15. Multiple ChoiceIf the triangles are similar, state how.SSSSASAANot similar
- 16. Multiple Choice
Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.
AA
SAS
SSS
Not Similar
- 17. Multiple ChoiceSolve for xx = 6x = 25x = 28x = 17
- 18. Multiple Choice
Solve:
3
4
-7
15
- 19. Multiple Choice
Solve:
6
7
-8
-5
- 20. Multiple Choice
Solve:
-4
10
3
-4
- Answer choicesTagsAnswer choicesTags