Rectangular area = length × width

Square perimeter = side length ×4

Square area = side length × side length

Area of triangle = base × height ÷2

Circumference = diameter × pi

Area of circle = pi x X2 radius

Area of parallelogram = base × height

The circumference of a trapezoid = the sum of four sides.

Trapezoidal area = (upper bottom+lower bottom) × height ÷2

Volume formula of cylinder = bottom area × height?

Cylinder surface area =2πr2+ bottom circumference × height

Side area of cylinder = bottom circumference x height.

The volume of a cone is half that of a cylinder with the same height as its bottom surface.

Volume formula of cone 1/3 base area x height

Transverse area of cone =πRl

Total area of cone =πRl+πR