Answer:-

Free online square calculator – Calculate the area, perimeter, and diagonal of a square.

## What is a square?

A square is a geometric shape that is a regular quadrilateral, meaning it has four equal sides and four equal angles. In a square:

- All four sides are of equal length.
- All four angles are right angles (90 degrees).
- The opposite sides are parallel.

## Formula

- Area of square = (side)² = a²
- Diagonal of square = √2 x side = a√2
- Perimeter of square = 4 x side = 4a meter

## Solved Example

Example.:-Square side length = 20 cm, find the area, perimeter and diagonal of the Square.

Area of square = (side)² = (20)² = 400 cm²

Diagonal of square = √2 x side = √2 x 20 = 28.284 cm

Perimeter of square = 4 x side = 4 x 20 = 80 cm

## How to use this square calculator

Enter only the square side value in the proper input field and then click the calculate button