Question

△abc rotates 90° clockwise about point p to form △abc. m∠cpc is °.

Explanation:

Step1: Recall the property of rotation

When a figure rotates about a point, the angle of rotation is the angle between a point and its image.

Step2: Determine the angle of rotation

Since \(\triangle ABC\) rotates \(90^{\circ}\) clock - wise about point \(P\) to form \(\triangle A'B'C'\), the angle between a point \(C\) and its image \(C'\) (i.e., \(\angle CPC'\)) is equal to the angle of rotation.

Answer:

\(90\)