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Last updated date: 09th Dec 2023
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# How many faces, edges, and vertices are there in the following figures?$\left( a \right){\text{ Cylinder}}$$\left( b \right){\text{ Sphere}}$

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Hint: This type of problem can be solved by seeing the figure and knowing the terms which we have to find. So for the vertices, there should be a corner and for the edge, there should be a straight line and for the face, there should be surfaces. By using all this now we are able to answer this question.

$\left( a \right){\text{ Cylinder}}$

Here from the figure, we can see that there are two straight lines and three surfaces can be seen and also there should be a corner for the vertex. Therefore, in a cylinder, there will be three faces and two edges, and zero vertices.
$\left( b \right){\text{ Sphere}}$

Here from the figure, we can see that there is no straight line and one surface can be seen and also there should be a corner for the vertex. Therefore, in a sphere, there will be one face and zero edges, and zero vertices.
A vertex in a mathematical figure can be characterized as a corner. A point where at least two line fragments meet is known as a vertex. A line portion between faces is known as an edge. A solitary level surface is known as a face. For instance, a tetrahedron has $4$ vertices and a pentagon has $5$ vertices. Vertices are the plural form of the vertex.