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

0 1 2 3 4 5 6 7 8 9 / . del

Enter known values:
side a	=
side b	=
area A	=
perimeter P	=
diagonal d	=

Select value to find:

side a

side b

area A

perimeter P

diagonal d

Show me an explanation

EXAMPLES

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examples

example 1:

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

example 2:

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

example 3:

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

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