Can a face of a shape be curved?
A face is the part of the shape that has the largest surface area – some can be flat, some can be curved e.g. a cube has 6 flat faces whereas a cylinder has 2 flat faces and 1 curved face. It has one curved face that goes all the way around.
What is a curved face?
The cylinder, sphere, cone etc. have curved faces. If a cylinder stands erect, its bottom face and top face are like circles. The bottom and top faces of a cylinder are flat. The third face is a curved face. A cylinder has three faces.
What is the curved face of a cone called?
A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex.
Which shape has a curved face and flat face?
Who am I? – 3D Shape Riddles
| Question | Answer |
|---|---|
| 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 |
| I have 1 curved face and 2 flat faces. Who am I? | Cylinder |
Can triangles have curved sides?
Circular triangles are triangles with circular-arc edges, including the Reuleaux triangle as well as other shapes. The deltoid curve is another type of curvilinear triangle, but one in which the curves replacing each side of an equilateral triangle are concave rather than convex.
What is a curved shape?
1. curved shape – the trace of a point whose direction of motion changes. curve. bell-shaped curve, Gaussian curve, Gaussian shape, normal curve – a symmetrical curve representing the normal distribution. meander – a bend or curve, as in a stream or river.
Is a circle flat or curved?
Well, first things first a circle is a two-dimensional shape, so a circle is definitely flat. A sphere is the three-dimensional extension of a circle, so let’s see whether the Earth is flat or a sphere and how we know.
Is a face flat or curved?
In geometry, the term ‘face’ refers to a flat surface with only straight edges, as in prisms and pyramids, eg. a cube has six faces. Curved surfaces, such as those found in cylinders, cones, and spheres, are not classified as ‘faces’.
Does a circle have a 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.
Is a pyramid flat or curved?
There are 3D shapes that consist of only flat surfaces. 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.
What do you call a curved triangle?
A Reuleaux triangle [ʁœlo] is a curved triangle with constant width, the simplest and best known curve of constant width other than the circle. Reuleaux triangles have also been called spherical triangles, but that term more properly refers to triangles on the curved surface of a sphere.
Do you consider a curved surface a face?
So the answer to your question is: SOME people consider a curved surface to be a face, and others do not. Those whose opinion matters most, don’t have an opinion (or would ask you for the context of your question before attempting an answer).
Which is the best way to figure out your face shape?
If you have a round face shape, your face length and width are about equal. You have no angles to your jaw, which is also rounded. Your cheekbones are the widest part of your face. To balance this face shape, choose hairstyles and makeup that elongate the face.
Which is the best description of a round face?
The round face shape is approximately as long as it is wide. If you have a round face shape, your face length and width are about equal. You have no angles to your jaw, which is also rounded. Your cheekbones are the widest part of your face.
When do you use the word edge in a curved surface?
The word “edge” is used in different ways; often people get in trouble by introducing the concept of “edge” in the context of polyhedra (where it does mean the intersection of two flat faces), but then talking about curved surfaces like cones without additional comment .