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Quadrilateral A'B'C'D is the image of quadrilateral ABCD under a rotation about point Q.

Quadrilateral A'B'C'D is the image of quadrilateral ABCD under a rotation about point-example-1
User Brian Buck
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4 votes

Answer:

90° counterclockwise or 270° clockwise

Explanation:

The easiest way to visualize this problem is to pick a segment of the quadrilateral and compare it to the corresponding segment on the other quadrilateral. For example, if I pick segment AB, I can compare it to segment A'B' and see that the two lines make a 90 degree angle with other. This means that quadrilateral ABCD can wither be rotated 90° counterclockwise or 270° clockwise.

User Ricardo Silva
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