 # Rectangle Diagonal Calculator

Enter Side Length ‘ a ‘= units

Enter Side Length ‘ b ‘= units

Diagonal of Rectangle = units

Rectangle Diagonal Calculator is a free online tool that displays rectangle diagonal for the given side lengths. BYJU’S online rectangle diagonal calculator tool makes the calculation faster, and it displays the diagonal of a rectangle in a fraction of seconds.

## How to Use the Rectangle Diagonal Calculator?

The procedure to use the Rectangle Diagonal calculator is as follows:
Step 1: Enter the values for a and b, i.e. side lengths in the input field
Step 2: Now click the button “Calculate” to get the rectangle diagonal
Step 3: Finally, the value of diagonal of rectangle will be displayed in the output field

Also, read:

### What is Meant by Rectangle Diagonal?

In Maths, rectangle is a two-dimensional shape with four sides. A rectangle is a quadrilateral whose opposite sides are parallel and equal. Also, the angles at four vertices equal to right angles. The diagonal of a rectangle divides the rectangle into two congruent right triangles. Hence, the diagonal can be found using Pythagoras theorem. Where, diagonal acts as hypotenuse, sides are considered as the base and perpendicular. The formula to find the diagonal of a rectangle is:
Diagonal = √(l2 + b2)
Here,
l = Length of the rectangle
b = Breadth of the rectangle