Question

A rectangle has a perimeter of 50 centimeters. If the width of the rectangle is 10 centimeters, what is its length?​

Answer 1

15 cm

Explanation:

The perimeter of a rectangle is 2(L + W), where L is length of the rectangle and W is the width.

If we plug in 10 for W, we get this:

2L + 2(10) = 50 <-- the perimeter

2L + 20 = 50

2L = 30

L = 15