
Check for Understanding Similarity Unit
Authored by Erin Inman
Mathematics
9th - 12th Grade
Used 4+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Find the scale factor for the dilation shown in the figure
4/3
3/4
1.3
.68
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Determine if the two triangles CDE and FGH are similar or not. If they are similar, state the similarity reason (AA, SSS, SAS) and give mathematical evidence to justify your answer. If you determine the triangles are not similar, also give mathematical evidence to justify why the triangles are not similar.
AA Similarity
SAS Similarity
SSS Similarity
These triangles are not similar
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Determine if the two triangles CDE and FGH are similar or not. If they are similar, state the similarity reason (AA, SSS, SAS) and give mathematical evidence to justify your answer. If you determine the triangles are not similar, also give mathematical evidence to justify why the triangles are not similar.
AA Similarity
SAS Similarity
SSS Similarity
These triangles are not similar
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Given the point A(9, 7), find the coordinates of the image after a dilation with a scale factor of 3 from the origin as a center of dilation. A'=(_,_)
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Given the point A(9, 7), find the coordinates of the image after a dilation with a scale factor of 3 using the point (11,4) as a center of dilation. A'=(_,_)
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Assume the triangles are similar. Solve for x.
x=_
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Assume the triangles are similar. Solve for y.
y=_
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