Question

Find the dimensions of a rectangular building with a perimeter of 110 meters if the length is four

times the width

Answer 1

b = 11 m

l = 44 m

Explanation:

l = 4b (length is four times width)

Perimeter = 110 m

2 * ( l + b ) = 110

2 * (4b + b ) = 110

2 * 5b = 110

b = 110 / ( 2*5) = 11

b = 11 m

l = 4b = 4 * 11 = 44 m