# Who I am I have one plane face which is my base I have one curved face and one vertex?

## Who I am I have one plane face which is my base I have one curved face and one vertex?

Who am I? – 3D Shape Riddles

Question | Answer |
---|---|

I have no flat faces. I have no straight edges. I just have one curved face. Who am I? | Sphere |

I have 1 curved face and one flat face. My flat face is a circle. Who am I? | Cone |

I have 6 flat faces, 12 edges, and 8 corners. Who am I? | Cube |

**What is a shape with 1 curved surface?**

A sphere has no edges and therefore no corners. It has one curved face that goes all the way around.

**Which solid figure has one circular base and a curved surface?**

cone

Cone

Properties | Surface Area | Volume |
---|---|---|

It has a circular or oval base with an apex (vertex). It has one curved side. A cone is a rotated triangle. | π r(r + s) | 1/3 πr2 h |

### Which of the following have flat as well as curved surface?

D. Cylinder. Hint:- In this question we can draw figures and check the number of curved and flat surfaces. Also triangular faces , rectangular faces , square faces are flat surfaces in nature and circular surfaces is a curved surface in nature.

**Does a cone have 1 or 2 faces?**

Students should realize that a cone has only one face, and you need more than one face to form an edge. Ask: Does a cone have any vertices? Lead students to see that a cone has no edges, but the point where the surface of the cone ends is called the vertex of the cone.

**Does a circle have a flat face?**

Because a circle is a flat, plane shape, it is a face. But because it is round around the outside, it does not form any edges or vertices. A cylinder has two circular faces but also no edges or vertices.

#### Can a triangle have a curved side?

There are two ways I triangle can have curved sides—in one case the sides curve in, and in the other the sides curve out. In the first case, the triangle is called “hyperbolic”—see Hyperbolic triangle —and in the the second, the triangle is called “spherical”—see Spherical geometry .

**Is a curved surface a face?**

Curved surfaces, such as those found in cylinders, cones, and spheres, are not classified as ‘faces’. Similarly, flat surfaces with curved boundaries, such as the circular surfaces of cylinders and cones, are not ‘faces’.

**What is a 3 dimensional figure?**

Three Dimensions: The objects around you, the ones you can pick up, touch, and move around, are three-dimensional. These shapes have a third dimension: depth. Cubes, prisms, pyramids, spheres, cones, and cylinders are all examples of three-dimensional objects. Three-dimensional objects can be rotated in space.

## Is a solid figure with two circular bases and a curved surface * 1 point?

Geometry Basics III

A | B |
---|---|

Sphere | A curved solid with no bases or faces |

Cone | A figure with a flat circular base and one curved surface leading to a vertex |

Cylinder | A figure with one curved surface and two parallel bases that are congruent circles |

Hemisphere | Half a sphere with a circular base |

**What is meant by curved surface area?**

Curved Surface Area- The curved surface area is defined as the area of only curved surface, leaving the circular top and base. Total Surface Area- It is the area of the curved surface as well as the bases.

**What is a curved surface?**

Curved Surface – Definition with Examples The curved surface is a rounded surface which is not flat. Curved Surface. Flat Surface. An object can have a curved surface all around it. Such objects have only one surface throughout.

### What kind of shape has two flat and one curved surface?

3D shapes such as cones and cylinders have a curved surface as well as flat surfaces. A cylinder has 2 flat surfaces and one curved surface. A cone has one flat surface and a curved surface.

**What is the base of a right circular cone?**

A right circular cone is one whose axis is perpendicular to the plane of the base. We can generate a right cone by revolving a right triangle about one of its legs. In the figure, you can see a right circular cone, which has a circular base of radius r and whose axis is perpendicular to the base.

**Which is not an example of a curved surface?**

None of them has a curved surface. The non-examples of 3D shapes with the curved surface are cubes, cuboids, pyramids, prisms, bricks, etc.

#### What kind of shape has no edges or vertices?

A sphere contains no flat faces but it has one continuous curved surface. A sphere is a shape that contains no edges or vertices. This means that it feels smooth to touch all the way around.

3D shapes such as cones and cylinders have a curved surface as well as flat surfaces. A cylinder has 2 flat surfaces and one curved surface. A cone has one flat surface and a curved surface.

**What are the facts about a curved surface?**

Fun Facts. Multiple circles stacked together form a curved surface. Any point on a curved surface is equidistant from its centre and this distance is called the radius. A flat surface can be rolled to form a curved surface, and if you open a roll, you can get a flat surface.

**Which is an example of a flat surface?**

For example, a cube, cuboid, pyramid and prism are all 3D shapes that are made up of flat surfaces. Their surfaces are squares, rectangles, triangles and parallelograms. None of them has a curved surface. The non-examples of 3D shapes with the curved surface are cubes, cuboids, pyramids, prisms, bricks, etc.

## Which is the only face on a cone?

A cone has one flat circular face as its base and one curved surface that wraps around the circular face. Again, faces are technically flat and so the only face on a cone is the circle on its base. However, sometimes curved surfaces are included.