Triangle Similarity: AA (Sec 7-3, 7-4)

Question 1

Multiple similarity transformations are performed on a triangle. Which elements must be preserved?

Revolt · Accepted Answer

angle measure

Question 2

Triangle A B C is reflected and then dilated to form smaller triangle A double-prime B double-prime C double-prime

Revolt · Accepted Answer

a reflection and a dilation

Question 3

The composition is applied to △RST to create the image of △R"S"T", which is not shown.

Revolt · Accepted Answer

(negative three-halves, nine-halves)

Question 4

Which diagram could be used to prove △ABC ~ △DEC using similarity transformations?

Revolt · Accepted Answer

Triangle A B C is reflected across side A C and then is dilated to form smaller triangle D C E.

Question 5

Triangle A E C is shown. Line segment B D is drawn near point C to form triangle B D C.

Revolt · Accepted Answer

∠BDC and ∠AED are right angles

Question 6

Which diagram can be used to prove △ABC ~ △DEC using similarity transformations?

Revolt · Accepted Answer

Triangle A B C is rotated about point C and then is dilated to form smaller triangle C E D.

Question 7

Two similar triangles are shown.

Revolt · Accepted Answer

translated

Question 8

Read the proof.Given: AB ∥ DEProve: △ABC ~ △EDC

Revolt · Accepted Answer

AA similarity theorem

Question 9

Which composition of transformations will create a pair of similar, not congruent triangles?

Revolt · Accepted Answer

a rotation, then a dilation

Question 10

Two similar triangles are shown.

Revolt · Accepted Answer

rotated

Triangle Similarity: AA (Sec 7-3, 7-4) Answers