Cone

Cone Facts Notice these interesting things: It has a flat base It has one curved side Because it has a curved surface it is not a polyhedron. And for reference: Surface Area of Base = π × r2 Surface Area of Side = π × r × s or Surface Area of Side = π × r × √(r2+h2) Volume = π × r2 × (h/3)

The pointy end of a cone is called the vertex orapex The flat part is the base An object shaped like a cone is said to be conical

A Cone is a Rotated Triangle A cone is made by rotating a triangle! The triangle has to be a right-angled triangle, and it gets rotated around one of its two short sides. The side it rotates around is the axis of the cone.

Volume of a Cone vs Cylinder

The volume formulas for cones and cylinders are very similar: 

The volume of a cylinder is:	π × r2 × h
The volume of a cone is:	π × r2 × (h/3)

So, the only difference is that a cone's volume is one third (¹/₃) of a cylinder's.

So, in future, order your ice creams in cylinders, not cones, you get 3 times more!

Different Shaped Cones