Question

Nicky’s classroom is in the shape of a rectangle. His teacher wants to add a border around the walls. The length of the room is 22 feet and the width of the room is 15 feet. How long must the border be to go all the way around all four walls of the room?32 feet74 feet330 feet360 feet

Answer 1

Step-by-step explanation

We have the following facts from the statement:

Length = 22

Width = 15

We have 4 total rooms, thus we must add all the sides.

The equation for the perimeter (assuming L is the length and W is the width) is the following:

`Perimeter=2L\text{ + 2W}`

Plugin the length and width:

`2*22+2*15=P`

Multiplying numbers:

`44+30=P`

Adding numbers:

`74=P`

Switching sides:

`Perimeter=\text{ 74}`

In conclusion, the solution is 74.