Triangle Similarity: AA

Question 1

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 2

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 3

Two similar triangles are shown.

Revolt · Accepted Answer

translated

Question 4

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 5

ΔXYZ was reflected over a vertical line, then dilated by a scale factor of , resulting in ΔX'Y'Z'. Which must be true of the two triangles? Select three options.

Question 6

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 7

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

Revolt · Accepted Answer

a rotation, then a dilation

Question 8

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

Revolt · Accepted Answer

angle measure

Question 9

Two similar triangles are shown.

Revolt · Accepted Answer

rotated

Question 10

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

Triangle Similarity: AA Answers

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