Question

Which of these transformations are isometries? The diagrams are not drawn to scale.

Answer 1

the answer is D. I, II, and III

Explanation:

Answer 2

The answer is all 3 of them. Transformations are isometries if distance between all dots are maintained the same. Easier way of spotting these is to check if all angles and all sides of surfaces are the same as before.

First and second we flipped horizontaly while last one we flipped both verticaly and horizontaly but sides and angles remained the same.