A rectangle has equal opposite sides and 4 right angles.
The diagonals of a rectangle are equal.
Area of a Rectangle
The area of a rectangle is equal to its base multiplied by its height.
Perimeter of the rectangle
Calculate the area and perimeter of a rectangle with a base of 10 cm and a height of 6 cm.
P = 2 · (10 + 6) = 32 cm
A = 10 · 6 = 60 cm2
Diagonal of a Rectangle
By applying the Pythagorean theorem for one of the triangles, we obtain:
Calculate the length of the diagonal of a rectangle with a base of 10 cm and a height of 6 cm.