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

$A=l\times w$

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

$A=21\times9$$=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

$\frac{189ft^2}{9}=21yards^2$

Hence the area of the of the floor