Question

Jennifer has a square bedroom. The area of her room is 144 ft2. What is the length of one side of Jennifer’s room?

A) 10 ft
B) 12 ft
C) 18 ft
D) 36 ft

Answer 1

Option B.
`12\ ft`

Explanation:

we know that

The area of a square is equal to

`A=x^(2)`

where

x is the length side of the square

In this problem we have

`A=144\ ft^(2)`

substitute and solve for x

`144=x^(2)`

suqre root both sides

`x=12\ ft`