Question

I am a rectangular picture frame . If I were straight. I would be 120 inches long . I am wrapped around a picture , and my length is twice as long as my width. What is the area of the picture that I am wrapped around ?

Answer 1

Let: x = width of picture
then: length = 2x
and based on the information:
2(2x) + 2(x) = 120
4x + 2x = 120
6x = 120
x = 20

So:
Width = 20in
Length = 40in

Therefore:
Area = 40 × 20
= 800in²