Use the picture to answer the question. angle abc is rotated 50° around point d . what is the measure of angle a'b'c' ?

a. 90°

b. 130°

c. 40°

d. 50°

A. 90°

Step-by-step explanation:

From the given picture, we can see that the measure of ∠ABC=90°.

Given that Angle ABC is rotated 50° around point D .

We know that a rotation is a rigid transformation that produces an image of a geometric figure with same shape and size by rotating about the the center of rotation.

It preserves the shape and angle inside the figure.

Therefore, ∠A'B'C'=∠ABC=90°.

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step-by-step explanation: