Question

The perimeter of a rectangle is 13 cm and its width is 2 ¾ cm. Find its length in cm.​

Answer 1

length = 3 3/4

Explanation:

13 = 2(2 3/4) + 2l

13 = 2(11/4) + 2l

13 = 22/4 + 2l

52/4 - 22/4 = 2l

30/4 = 2l

30/4 ÷ 2 = l

30/4 x 1/2 = l

30/8 = l

length = 15/4 or 3 3/4