# How many faces has a cylinder?

2

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 .#### How many edges faces and vertices are on a cone?

Cone has 1 flat Face (the base) which is a circle. 1 curved Face ,1 Vertex , 1 Edge.. Cylinder has**2**flat Faces (top and bottom) both are circles .1 curved Face ,**2**Edges ,No Vertices..#### 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.#### 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.#### Do 2d shapes have a face?

They will talk about how many sides a**2D shape has**, and whether the sides are straight or curved. It is very important that they handle 3D**shapes**in order to be able to count their**faces**, edges and vertices, so they will probably construct their own 3D**shapes**from nets.#### How many edges does a sphere have?

Logically I would say that a sphere has 1 face,**0**vertices and**0 edges**. Problem: a face is flat, sphere is not flat. Secondly this does not satisfy Euler's formula v - e + f = 2. I would say a cone has 2 faces, 1 edge, and 1 vertex.

C.

### 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 sides does a cone have in 3d?

A cone has only one face - its base. Other people simply define a face as a 'surface' of a three-dimensional object. Using this definition, a cone would have**two faces**- its base and its curved face that ends in a point.#### What is the face?

The**face**is a central body region of sense and is also very central in the expression of emotion among humans and among numerous other species. The**face**is normally found on the anterior (frontal, rostral) surface of the head of animals or humans, although not all animals have**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**!

Updated: 16th October 2018