Rectangle calculator

An online calculator that calculates the side, area, perimeter and diagonal of a rectangle if you enter two known values. Step-by-step explanations for each combination of input parameters are provided.

Rectangle Calculator

Input value you know and select what to compute.
show help ↓↓ examples ↓↓

I want to calculate:

Input two elements of a rectangle
( use letter r to input square root. Ex: $3\sqrt{2} = \text{3r2} $ )

$ a $

$ b $

$ d $

AreaA

PerimP

working...

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examples

example 1:ex 1:

Find the area of the rectangle whose sides are $14cm$ and $31 cm$.

example 2:ex 2:

Finding the area of a rectangle whose diagonal is $9 cm$ and one side is $5 cm$.

example 3:ex 3:

The area of a rectangle is $56 cm^2$ and one side is $6 cm$. Find perimeter.

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