Question

B) The perimeter of the rectangle below is 42cm. Calculate the

lengths of the sides by forming an equation and solving it.

x-2
x + 5​

Answer 1

L = 14 W = 7

Explanation:

2L + 2W = P

2 (x - 2) + 2(x + 5) = 42

2x - 4 + 2x + 10 = 42

4x + 6 = 42

-6. -6

4x = 36

x = 9

9 - 2 = 7

9 + 5 = 14