If triangle CDE is dilated by a scale factor of 15 with a center of dilation at vertex E, what is the area of triangle C'D'E'?

My Answer:

We are given that the second figure is a dilation of the first one by 15. Thus, the ratio of their corresponding sides is equal to

C'D'E:CDE = 15:1

For the areas,

A of C'D'E': A of CDE = 225:1

Thus, if we have the area of CDE, we just have to multiply that with 225 to have the area of C'D'E'.