Question 1090602
2 x Length + 2 x Width = Perimeter. We can rewrite it like this:
2L + 2W = 48
The problem says that:
L = 3W
Let's plug this value for L in the formula above:
2(3W) + 2W = 48
6W + 2W = 48
8W = 48
W = 48/8 = 6
So, the width is 6 and the length is 3W = 3(6) = 18