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# Diagonal of a Square Calculator

'Cuemath's Diagonal of a Square Calculator' is an online tool that helps to calculate the diagonal of the square for a given side length.

## What is Diagonal of a Square Calculator?

Cuemath's online calculator helps you to calculate the diagonal of a square in a few seconds

## How to Use Diagonal of a Square Calculator?

Please follow the below steps to find the diagonal of a square:

**Step 1:**Enter the length of the side in the given input box.**Step 2:**Click on the**"Calculate"**button to find the diagonal of a square.**Step 3:**Click on the**"Reset"**button to find the diagonal of a square for different side lengths.

## How to Find Diagonal of a Square?

A square is defined as a closed two-dimensional figure with four sides and four corners. The length of all four sides is equal and parallel to each other. The diagonal of a square is a line segment that joins any two of its opposite vertices.

**Diagonal of a square = √2 a**, where 'a' is the length of side

**Solved Example:**

Find the diagonal of a square whose side length is 8 units?

**Solution:**

Diagonal of a square = √2 a

= √2 × 8

= 1.414 × 8

= 11.312 units

Therefore, the diagonal of a square is 11.312 units.

Similarly, you can try the calculator to determine the diagonal of a square if:

1) side length = 16 units

2) side length = 11 units

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