Surface Area and Volume of Cones (Year 10A)

LO: To find surface area and volume of Right Cones

Know:

  • the definition of radius and π
  • the definition of volume and surface area
  • the definition of a right cone

Understand:

  • That formulas can be used to quickly find the surface area and volume of right cones.

Do:

  • I can find the surface area and volume of right cones.

Right Cone

A right cone  is a 3-D shape that has the apex (point of the pyramid) directly above the center of a circular base.

An oblique cone is a 3-D shape where the apex doesn’t not line up directly above the center of a circular base.


Volume of Right Cones

To find the volume of a right cone, you need to multiply the radius by π then by the square root of the sum of the radius squared and height squared.

Surface Area of Right Cone

To find the surface area of a right cone, you need to multiply the radius by π then by the square root of the sum of the radius squared and height squared.

Surface Area and Volume of Right Cone Videos