Question

exploring rotations
explore the properties of rotation by following these steps.
√ 1. press rotate to perform a rotation of △abc about point p.

1. make a conjecture:

what do you think is the measure of the angle of rotation? □°
check

Explanation:

Step1: Observe the orientation change

Without additional information like angle - measurement tools or reference lines, we can't precisely calculate the angle. But if we assume a standard 90 - degree rotation (a common rotation in geometry problems), we can make a conjecture.

Step2: Consider common rotation angles

Common rotation angles are 90°, 180°, 270°. Based on the visual change in orientation of △ABC to △A'B'C', a 90 - degree rotation is a reasonable conjecture.

Answer:

90