80
400 square feet.
If it is a square room then its perimeter is: 4*15 = 60 feet
if the perimeter is 44 feet and the room is square then each wall is 11 feet (four walls x 11 =44) The area is the length x breadth, in this case 11 x 11 = 121 square feet
640
To find the area of a room measuring 16 feet x 10 feet, multiply the length by the width, the answer is 160 square feet.