Question

Mike is installing weatherstripping around a window that measures 3.5 ft x 4.5 ft. How much weatherstripping will he need?

Answer 1

3.5 * 2 + 4.5* 2 = 16

Answer 2

`16\ ft`

Explanation:

To find how much weatherstripping will Mike need, calculate the perimeter of the window

so

The perimeter of a rectangular shape is equal to

`P=2(b+h)`

we have that

`b=3.5\ ft, h=4.5\ ft`

substitute in the formula

`P=2(3.5+4.5)=16\ ft`