Question

Triangle ABC was dilated with the origin as the center of dilation to form triangle A'B'C'.

Which statement about triangle ABC and triangle A'B'C' is true?

Answer 1

The side lengths of A'B'C' are 1.5 times the length of ABC

Explanation:

if its dilated, the angle measures will stay the same.

So you can eliminate the angle measure answers.

Then, you dont even need to do any math; just look at the side lengths. A'B'C''s side lengths are definitely bigger than ABC's side lengths, so the only right answer is "The side lengths of A'B'C' are 1.5 times the length of ABC". Theres no way that A'B'C' has 2/3 the side length of ABC.