# 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.A.

### 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.#### What is a shape that has 5 sides?

Definition of a PolygonShape # of Sides Quadrilateral 4 Pentagon 5 Hexagon 6 Heptagon 7 #### What shape has a curved surface?

These figures have curved surfaces, not**flat**faces. A cylinder is similar to a prism, but its two bases are circles, not polygons. Also, the sides of a cylinder are curved, not**flat**. A cone has one**circular**base and a vertex that is not on the base.#### 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.

B.

### 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.#### How many faces are on a hexagon?

In geometry, the hexagonal prism is a prism with hexagonal base. This polyhedron has**8 faces**, 18 edges, and 12 vertices. Since it has**eight faces**, it is an octahedron. However, the term octahedron is primarily used to refer to the regular octahedron, which has**eight**triangular faces.#### What is a rectangular box called?

A**rectangular**is a three dimensional shape with six**rectangular**shaped sides. All of its angles are right angles. It can also be**called**a cuboid. A**cube**and a square**prism**are both special types of a**rectangular prism**. Keep in mind, a square is just a special type of**rectangle**!#### How many flat and curved surfaces does a cylinder have?

These edges are curved edges. In a cylinder there are 2 plane surfaces and**1 curved surface**. There are 2 edges and no vertices. The base and top of a cylinder are of the same shape (circular) and size.

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 curved edges are there in a cylinder?

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 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)

Updated: 16th October 2018