To calculate the area of a rectangle or square, multiply side x side. So to get the square feet in a banner 5 ft by 8 ft, you would multiply 5 x 8, which is 40 square feet.
16-ft x 70-ft = 1,120 square feet
30 feet x 30 feet = 900 square feet.
50*50 = 2500 square feet
To find the area of a square, you multiply the length by the width. In this case, 100 ft x 100 ft equals 10,000 square feet. This is because 100 ft multiplied by 100 ft is equal to 10,000 square feet.
26 ft times 26 ft = 676 square feet
414 square feet
180 square feet.
1000 square feet
600 square feet.
2,400 square feet.
1344 square feet.
12x24=288 square feet.
300 square feet
8-ft x 4-ft = 32 square feet
3 feet x 531 feet = 1593 square feet.
32-ft x 8-ft = 256 square feet
360 square feet !