Question

A rectangle floor is 21 ft long and 9ft wide. what is the area of the floor in square yards?

Answer 1

Given:

The length of the rectangle floor is 21 ft and the width is 9 ft.

The area of the rectangle is

`A=l* w`

Substitute l=21ft and w=9ft, we get

`A=21*9`
`=189ft^2`

We need to convert ft into yards.

`3\text{ ft = 1 yard }`

`3^2ft^2=1yard^2`

`9ft^2=1yard^2`

Divide 189 by 9, we get

`(189ft^2)/(9)=21yards^2`

Hence the area of the of the floor