Triangle Similarity: AA

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

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

Revolt · Accepted Answer

The triangles are similar because all pairs of corresponding angles are congruent.

Question 4

Two similar triangles are shown.

Revolt · Accepted Answer

rotated

Question 5

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 6

Question 6

Revolt · Accepted Answer

and

Question 7

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

Revolt · Accepted Answer

AA similarity theorem

Question 8

On a coordinate plane, triangle A B C has points (negative 9, 3), (negative 9, 6), (0, 3) and triangle A double-prime B double-prime C double-prime has points (3, negative 1), (3, negative 2), and (0, negative 1).

Revolt · Accepted Answer

a 180° rotation about the origin, then a dilation by a scale factor of

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

Read the proof.Given: AEEC; BDDCProve: △AEC ~ △BDC

Revolt · Accepted Answer

∠ACE ≅ ∠BCD

Triangle Similarity: AA Answers

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