A solid with a circular base and a curved side that ends in one point

It has one vertex.

Volume of a cone

It has one vertex.

Volume of a cone

= 1/3 πr2h

where r is the radius of the widest part of the cone, and h is the height of the cone.

Surface area of a cone (including base):

= πr2 + πrs

Surface area of a cone (excluding base):

= πrs

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