11th December 2019

10

# How many dimensions are there in a surface?

Since all sides of a cube are exactly equal, there can only be one dimension (size) given for a cube, which is a three-dimensional object. However, the surface of the cube is a square which also has one dimension (size) but is a two dimensional object.

What flat surface does a cylinder have?

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.

What is a curved face?

Curved Surface Area of a Cylinder. If a plane cuts a solid parallel to its base, then the exposed surface is said to be a cross-section. A solid such as a can of drink is a cylinder if its cross-section is a circle.
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