Question

the length of a rectangle is equal to triple the width. if the perimeter is equal to 168 feet ,what is the length of the rectangle.

Answer 1

The length of the rectangle = 63 ft

Explanation:

Let us assume the width of the rectangle = m ft

So, the length of the rectangle = 3 x Width = 3 x m = 3 m ft

Perimeter = 168 ft

PERIMETER OF A RECTANGLE = 2 (LENGTH + WIDTH)

⇒ 168 ft = 2 ( 3 m + m)

or, 168 = 2 ( 4 m)

or, 8 m = 168

⇒ m = 168/8 = 21

or, m = 21 ft

Hence, the width of the rectangle = m = 21 ft

And the length of the rectangle = 3 x m = 3 x 21 = 63 ft