Question

Trapezoid BIRD is dilated to form trapezoid FROG. What corresponding angle is congruent to angle BIR

Answer 1

Answer: ∠FRO

Explanation:

• A dilation is a transformation that forms an image that is the exactly same shape as the original, but of a different size.

Given : Trapezoid BIRD is dilated to form trapezoid FROG.

As dilation creates similar image as the original .

Thus by the property of similarity ,the corresponding angles are congruent.

Therefore, angle congruent to ∠BIR must be ∠FRO [first three letters of the name of the shapes]

Answer 2

Matching the sequence of corresponding letters, ∠BIR ≅ ∠FRO.