What is the square feet of 36 inches X 60 inches?

Oh, dude, you're hitting me with some math here! So, to find the square footage of a rectangle, you just multiply the length by the width. In this case, 36 inches by 60 inches equals 2,160 square inches. To convert that to square feet, you divide by 144 (since there are 144 square inches in a square foot), giving you 15 square feet. Easy peasy, right?