Question

A square room has a floor area of 81 square feet. the height of the room is 5 what is the area of one wall

Answer 1

45 square feet

Explanation:

Area of square and area of rectangle:

Area of square = 81 square feet

`\sf \boxed{Side \ of \ square = √(area)}`

`\sf = √(81)\\\\ = √(9*9)\\\\ = 9 \ feet`

height = 5 ft

length of wall = 9 ft

Area of one wall = length * height

= 9 * 5

= 45 square feet