Question

Which transformation preserves only angle measurement? A) dilation B) rotation C) reflection D) translation
I Think Its A But I'm Not Sure

Answer 1

A rigid transformation preserves both length and angle measurements.

Examples of rigid transformations are :

1) Rotation

2) Reflection

3) Translation.

Dilation — This is a transformation that produces an image with the same shape as the original image but of different size.

It can be enlargement of the original image, a reduction or one that stretches the original image.

It preserves only the angle measurement.

The correct answer is thus :

Dilation

Answer 2

The transformation preserves only angle measurement is dilation.

This transformation helps in taking up the production of an image that is of the same shape as the main original image.

The similar image formed is the one that helps in the preservation of angle and ratio that sticks by the sides of length.