Question

If ΔPQR is dilated by a scale factor of 2 with a dilation center at vertex Q, which statement is true?

A) The angle measurements decrease by a factor of
1
2
.
B) The angle measurements decrease by a factor of 2.
C) The angle measurements increase by a factor of 2.
D) The angle measurements are unchanged.

Answer 1

Answer:D

The ANGLE measurement of the dilation does not change, the length changes.

Answer 2

Option D) The angle measurements are unchanged.

Explanation:

we know that

A dilation is a non-rigid transformation that produces an image that is the same shape as the original, but is a different size, so produces similar figures.

Remember that, if two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent.

therefore

The angle measurements are unchanged