Question

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

Determine the angle of rotation

a. -90
b. -60
c. 60
d. 90​

Answer 1

9514 1404 393

Answer:

a. -90°

Explanation:

Point A is straight west of Q.

Point A' is straight north of Q. This represents a rotation of 90° clockwise, or -90°. (Positive angles are counterclockwise.)