### Home > INT2 > Chapter 6 > Lesson 6.2.3 > Problem 6-76

6-76.

*“What about their areas? Are they related in the same way?”* he wonders.

What are the perimeter and area of

? Test Al’s question by enlarging

by a scale factor of . What are the perimeter and area of the image triangle? Use the new side lengths to compute the area and perimeter of the enlarged triangle.

Does the perimeter increase by a scale factor of

? Yes!

Answer Al’s question. Does the area increase by a scale factor of

? Explain what happened.