Use the picture to answer the question. Angle ABC is rotated 50° around point D . What is the measure of angle A'B'C' ?

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

5 0

Answer: 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°.

MissTica3 years ago

4 0

Answer:

A. 90

Step-by-step explanation:

Rotating an angle does not change its measure. ABC is 90 degrees as marked by the corner symbol. After rotating, the angle stays 90 degrees.

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