Question

Juan is enlarging a photo that has a length of 4 in and a width of 6 in. He would like to enlarge the picture by a scale factor of 3. What is the perimeter of the new picture?

Answer 1

Answer: 60 in

Explanation:

if the image is 3 times bigger, the length and width become...

4 in * 3 = 12 in. length

6 in * 3 = 18 in. width

so the perimeter is

12 * 2 + 18 * 2 = 60 inches!