Rectangle

A rectangle has equal opposite sides and 4 right angles.

The diagonals of a rectangle are equal.

Rectangle


Area of a Rectangle

The area of a rectangle is equal to its base multiplied by its height.

Rectangle

Area of a Rectangle

Perimeter of the rectangle

Perimeter of a Rectangle

Example

Calculate the area and perimeter of a rectangle with a base of 10 cm and a height of 6 cm.

Diagonal of a Rectangle

P = 2 · (10 + 6) = 32 cm

A = 10 · 6 = 60 cm2

Diagonal of a Rectangle

Diagonal of a Rectangle

By applying the Pythagorean theorem for one of the triangles, we obtain:

Diagonal of a Rectangle

Diagonal of a Rectangle

Example

Calculate the length of the diagonal of a rectangle with a base of 10 cm and a height of 6 cm.

Diagonal of a Rectangle

Diagonal of a Rectangle

Diagonal of a Rectangle