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Area of a rectangle, rectangle area formula calculator

Area of a rectangle, rectangle area formula calculator allows you to find an area of a rectangle, by the formulas, using length of rectangle sides, or length of diagonal and angle between diagonals.

Method of calculating the area of a rectangle:

Length:    Width:   

The area of a square

Rectangle is a quadrilateral with four right angles.
Formulas for area of a rectangle: The area of a rectangle, The area of a rectangle
where a - width of a rectangle, b - length of a rectangle, d - diagonals, α - angle between diagonals