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

Answer:

45 square feet

Step-by-step explanation:

Area of square and area of rectangle:

Area of square = 81 square feet

   $\sf \boxed{Side \ of \ square = \sqrt{area}}$

                             $\sf = \sqrt{81}\\\\ = \sqrt{9*9}\\\\ = 9 \ feet$

height = 5 ft

length of wall = 9 ft

Area of one wall = length * height

                            = 9 * 5

                            = 45 square feet