Card 0 of 2
A square has perimeter 24 feet. Give its area.
The perimeter of a figure is the sum of the lengths of its sides. A square comprises four sides of equal length, so, if the perimeter of the square is 24 feet, then each side has length
feet.
The area of the square is equal to the length of a side multiplied by itself, so the area of this square is
square feet.
Compare your answer with the correct one above
Jennifer wants to wallpaper her room which is made up for four rectangular walls each measuring at feet by
feet. If each roll of wallpaper covers
square feet of space, how many rolls of wallpaper will Jennifer need?
Start by finding out the total square footage of wallpaper needed.
Find the area of one wall. Recall that in order to find the area of a rectangle, you must multiply the length by the width.
Since we have four identical walls,
Now divide this by the amount of square feet covered by each roll of wallpaper to find how many rolls are needed.
Compare your answer with the correct one above