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07-11-2017
Mathematics

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I WILL GIVE BRAINLIEST TO THE CORRECT ANSWER.

Sam rotated parallelogram ABCD 90° clockwise around the origin. If angle A is 130° and angle B is 50°, what is the degree measurement of angle A'?

a. 80°
b. 130°
c. 50°
d. 180°

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mreijepatmat mreijepatmat

07-11-2017

Rotation keeps sides length, respective angles and form of the figure UNCHANGED. So if ∠ A = 130°, the ∠ A', the image of ∠ A transformed by the rotation is also 130°

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