Rectangle Calculation

A rectangle is a quadrilateral with four right angles. To calculate the rectangle, two parameters must be known. The result shows the properties that can be calculated from the specified parameters.

To perform the calculation, select the type of parameters and enter their values. Then click the 'Calculate' button.

Calculate rectangle online  Input Delete Entries Length a Width b Width b Diagonal d Area A Perimeter P Decimal places 0 1 2 3 4 6 8 10  Results Length a Width b Diagonal d Area A Perimeter P

Description

In geometry, a rectangle is a regular quadrilateral with four right angles and each has two sides of equal length that lie opposite each other. Properties of a rectangle:

• Opposite sides are of equal length and parallel to each other.
• The four interior angles are equal and are each 90 degrees.
• The two diagonals are the same length and bisect each other.
• A rectangle has a circumference, and the center of the circumference lies at the intersection of the diagonals.

Formulas

Length (a)

\(\displaystyle a = \frac{A}{b} \)

Width (b)

\(\displaystyle b = \frac{A}{a}\)

Area (A)

\(\displaystyle A = a ·b\)

Perimeter (P)

\(\displaystyle P= (2 · a) + (2 · b)\)

Diagonal (d)

\(\displaystyle d = \sqrt{a^2 + b^2}\)