Question

classify whether each pair of figures appears to be a rigid motion or not a rigid motion. preimage image preimage image preimage image preimage image not a rigid motion rigid motion video textbook

Explanation:

Step1: Recall rigid - motion definition

A rigid motion preserves distance and angle measures. That is, the pre - image and the image are congruent.

Step2: Analyze first pair

The first pair of figures has the same shape and size. The pre - image and image are congruent, so it is a rigid motion.

Step3: Analyze second pair

The second pair of figures has different shapes. The angles and side - lengths are not the same in the pre - image and image, so it is not a rigid motion.

Step4: Analyze third pair

The third pair of figures has the same shape and size. The pre - image and image are congruent, so it is a rigid motion.

Step5: Analyze fourth pair

The fourth pair of figures has different shapes. The angles and side - lengths are not the same in the pre - image and image, so it is not a rigid motion.

Answer:

1. rigid motion
2. not a rigid motion
3. rigid motion
4. not a rigid motion