Rectangle Side Lengths

Online calculator provides the opportunity to calculate the length of a rectangle's sides if its area, diagonal, or perimeter is known.

To find the length of a rectangle's side, knowing the diagonal d and one of the sides a, you can use the formula: b = √(d^2 - a^2)

To find the length of the other side of a rectangle, knowing the perimeter P and one of the sides a, you can use the following formula: b = P - 2a

To find the length of a rectangle's side, knowing the area S and one of the sides a, you can use the following formula: b = S / a