# How many faces are in a cone?

A cone has one face. It is a three-dimensional shape with a circular base, one side and one vertex. Faces can be identified as the flat surfaces on a three-dimensional figure.
A.

### How many faces are on a sphere?

All of these figures are curved in some way, so they have no edges or vertices. What about their faces? A sphere has no faces, a cone has one circular face, and a cylinder has two circular faces. Therefore, the number of faces increases by one from one figure to the next.
• #### How many edges does a triangle have?

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted .

2 edges
• #### What is an edge in math?

An edge is a line segment that joins two vertices (on the boundary or where faces meet). Example: This tetrahedron has 6 edges. Vertices, Edges and Faces.
B.

### How many curved edges does a sphere have?

An edge is where 2 faces meet, again some can be straight, some can be curved e.g. a cube has 12 straight edges whereas a cylinder has 2 curved edges. A corner is where 3 edges meet. A cube has 8 corners, as does a cuboid. A sphere has no edges and therefore no corners.
• #### How many sides are there in a pyramid shape?

The simplest regular pyramid then is a 4-sided pyramid (base + 3 sides). Its proper name is a "tetrahedron". The tetrahedron has the extra interesting property of having all four triangular sides congruent. An Egyptian pyramid has a square base and four triangular sides.
• #### How many corners and sides does a pentagon have?

A cyclic pentagon is one for which a circle called the circumcircle goes through all five vertices. The regular pentagon is an example of a cyclic pentagon.
• #### How many flat surfaces does a cone?

A cone has one face. It is a three-dimensional shape with a circular base, one side and one vertex. Faces can be identified as the flat surfaces on a three-dimensional figure.
C.

### How many faces has a cylinder?

2
• #### How many faces has a sphere?

All of these figures are curved in some way, so they have no edges or vertices. What about their faces? A sphere has no faces, a cone has one circular face, and a cylinder has two circular faces. Therefore, the number of faces increases by one from one figure to the next.
• #### How many faces are on a triangular pyramid?

It has 4 Faces. The 3 Side Faces are Triangles. The Base is also a Triangle. It has 4 Vertices (corner points)
• #### What is a flat shape?

A closed, two-dimensional or flat figure is called a plane shape. Different plane shapes have different attributes, such as the numbers of sides or corners. A side is a straight line that makes part of the shape, and a corner is where two sides meet.

Updated: 12th November 2019