Question

Complete the following table by filling the number of faces, the number of faces, the number of edges and the number of vertices for the given solid:

Solid	Number of faces	Number of edges	Number of vertices
Cuboid/Cube
Triangular prism
Hexagonal prism
Triangular pyramid
Square pyramid
Pentagonal pyramid

Answer 1

Every individual flat surface of a solid is called its face.

The line segment which acts as an interface between two faces is called an edge. Sometimes it is also described as the line segment joining two vertices.

Vertex is a point where two or more edges meet.

A cuboid and cube has $6$faces, $12$edges, and $8$vertices.

A triangular prism has $5$faces, $9$edges, and $6$vertices.

A hexagonal prism has $8$faces, $18$edges, and $12$vertices.

A triangular pyramid has $4$faces, $6$edges, and $4$vertices.

A square pyramid has $5$faces, $8$edges, and $5$vertices.

A pentagonal pyramid has $6$faces, $10$edges, and $6$vertices.

Hence, the complete table is given below:

Solid	Number of faces	Number of edges	Number of vertices
Cuboid/Cube	$6$	$12$	$8$
Triangular prism	$5$	$9$	$6$
Hexagonal prism	$8$	$18$	$12$
Triangular pyramid	$4$	$6$	$4$
Square pyramid	$5$	$8$	$5$
Pentagonal pyramid	$6$	$10$	$6$