Question

A rectangle is 9 ft long and 40 in wide. What is its perimeter in inches?

Answer 1

`"296 in"`

Explanation:

First, convert the `"9 ft"` long side into inches.

Since there are `"12 in"` in `"1 ft"`,

`"9 ft"xx12="108 in"`

Thus, the two sides of the rectangle are `40` and `"108 in"`.

The perimeter of a shape is just the sum of all its side lengths. Every rectangle has two pairs of congruent sides, so its perimeter can be evaluated through the expression

`40+40+108+108`

which equals

`"296 in"`