Question

Polygon PQRST shown below is dilated with a scale factor of 3, keeping vertex P as the center of dilation:

Answer 1

Which statement about polygon PQRST and its image after dilation, polygon P'Q'R'S'T', is correct?

The length of diagonal PS and diagonal P'S' are in the ratio 1:3.

The lengths of side PT and side R'Q' are in the ratio 1:3.

The length of side PT is equal to the length of side P'T'.

The measures of angle S and angle S' are in the ratio 1:3.

Answer 2

@Squirrels Can you help?

Answer 3

I believe it's A, because the length did triple.
All others are wrong and easy to check (not sure about second choice)
-I'd think that's wrong because they're not related... Not really sure. (Although visually, they don't seem on a 1:3 ratio)
-The length of side PT is not equal to side P'T' because P'T' is now 3x longer
-The measures of angle S and angle S' are the same -- you only changed side measurements.

Sorry that's all I could help with

Answer 4

Thanks so much!