Question

The perimeter of a rectangular field is 342 m. If the width of the field is 76 m, what is it’s length?

Answer 1

The length is 95 m

Explanation:

P = 2(l+w) where l is the length and w is the width

342 = 2(l+76)

Divide each side by 2

342/2 = 2/2(l+76)

171= l+76

Subtract 76 from each side

171- 76 = l+76-76

95 = l