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In the picture triangle A'B'C' is an image of triangle ABC after a rotation.
The center of rotation is E.
a. What is the length of side AB? Explain how you know.
b. What is the measure of angle D'? Explain how you know.
I will give u brainliest if correct

In the picture triangle ABC is an image of triangle ABC after a rotation The center of rotation is E a What is the length of side AB Explain how you know b What class=

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Answer:

A. AB=9, B. Angle D'=45 degrees

Step-by-step explanation:

When rotating shapes you don't change the length of the sides, or the degree of the angles. Therefore the angles and side lengths are the same as the angle and side length of the cooresponding side or angle.

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