Question

Brooke wants to rotate this triangle 90° clockwise about the origin. Which other transformation would give exactly the same result as Brooke’s rotation?

A. rotation 270° counter-clockwise about the origin


B. reflection across the y -axis


C. rotation 270° clockwise about the origin


D. reflection across the x -axis

Answer 1

A

Explanation:

Answer 2

A. rotation 270° counter-clockwise about the origin

Explanation:

You can go in one direction by (some amount) around a circle to get to a specific spot, or you can go in the other direction by an amount that is (360° - (some amount)). You will get to the same spot.

CW 90° is the same as CCW 270°