A rectangle has side lengths of 8 yards and 18 yards. What are the side lengths of a square with the same area?
First, we can use the area formula for a rectangle.
A = lwA = 8 yd × 18 ydA = 144 yd2
Since this area is the same as the area of the square, we can substitute that into the appropriate formula to solve for side length s.
A = s2144 yd2 = s2s = 12 yd
The square has side lengths that are 12 yards long.