Circles and PiCone

A cone is a three-dimensional solid that has a circular base. Its side “tapers upwards” as shown in the diagram, and ends in a single point called the vertex.

The radius of the cone is the radius of the circular base, and the height of the cone is the perpendicular distance from the base to the vertex.

Just like other shapes we met before, cones are everywhere around us: ice cream cones, traffic cones, certain roofs, and even christmas trees. What else can you think of?