Question

PLS HELP! Find the missing side and then find the perimeter.

Answer 1

To find the missing side and perimeter we must understand the components associated with the area and perimeter of a rectangle.

Explanation:

The general formula for the area of a rectangle is:
`A= lw`

• A = area
• l = length
• w = width

Given A and l we can rearrange the equation and solve for the missing side 'w'.

`(A)/(l)=w`

`10/4= 2.5`

w = 2.5 yd

The perimeter of a rectangle is:
`P=2w+2l`

`P=2(2.5) +2(4)`

`P = 8+5`

P = 13 yd

Answer: The missing side is 2.5 yd and the perimeter is 13 yd.