Площадь прямоугольника онлайн калькулятор (6 способов)

A rectangle is a geometric shape that has four right angles (90°) and opposite sides are equal and parallel.
Rectangle area formula where a and b are sides.

A rectangle is a geometric shape that has four right angles (90°) and opposite sides are equal and parallel.
Rectangle area formula or where a or b - side, P is the perimeter.

A rectangle is a geometric shape that has four right angles (90°) and opposite sides are equal and parallel.
Rectangle area formula or where d is diagonal, a or b - side.

A rectangle is a geometric shape that has four right angles (90°) and opposite sides are equal and parallel.
Rectangle area formula where d is diagonal, α° is the angle between them in degrees.

A rectangle is a geometric shape that has four right angles (90°) and opposite sides are equal and parallel.
Rectangle area formula or where R is the radius of the circumscribed circle, a or b - side.

A rectangle is a geometric shape that has four right angles (90°) and opposite sides are equal and parallel.
Rectangle area formula or where R is the radius of the circumscribed circle, a or b - side.