Area of a Square
The area of a square is calculated as the side length squared.
Area = side × side
Area of a Rectangle
Find the area by multiplying the length by the width.
Area = length × width
Area of a Circle
Calculate using the formula π times the radius squared.
Area = π × radius²
For more on circles, check our Circles page!
Area of a Triangle
Half the base times the height gives you the area.
Area = (base × height) / 2