Question

A rectangular floor is 21 feet long and 9 feet wide

Answer 1

The area will be 189

Answer 2

For this case we have that the area of the rectangle is given by:

`A = a * b`

Where:

a: It is the length of the rectangle

b: It is the width of the rectangle

According to the data we have to:

`a = 21 \ feet\\b = 9 \ feet`

Replacing the data we have:

`A = 21 * 9\\A = 189`

Finally, the floor area is
`189 \ ft ^ 2`

Answer:

`189 \ ft ^ 2`