Question

△QRS is rotated about point P to △Q′R′S′ . Which statements are true about the pre-image and image?

Select each correct answer.


The corresponding angle measurements in each triangle between the pre-image and the image are preserved.

The image is smaller than the pre-image.

The corresponding lengths, from the point of rotation, between the pre-image and the image are preserved.

The shape of the pre-image and the image is preserved, but the size is not.

Answer 1

Note that rotation will not affect the shape and size of an object.

Rotation with respect to a point preserves the corresponding sides and the corresponding angles of the original image.

Hence, the statements

The corresponding angle measurements in each triangle between the pre-image and the image are preserved and

The corresponding lengths, from the point of rotation, between the pre-image and the image are preserved

are true.