Question

The perimeter of a playing field for a certain sport is168 ft. The length is 42 ft longer than the width. Find the dimensions.

Answer 1

width : 21ft

length : 63ft

Explanation:

(42ft + w) + (42ft + w) + w + w = 168ft

42ft + w + 42ft + w + w + w = 168ft

w + w + w + w = 168ft - 42ft - 42ft

4w = 84ft

w = 84ft ÷ 4

w = 21ft

so,

width : 21ft

length : 21ft + 42ft = 63ft