Question

E. Count and write faces, vertices and edges of the figure given
below:
Faces
Vertices

Edges​

Answer 1

Answer:

A vertex (plural: vertices) is a point where two or more line segments meet.

For a polygon an edge is a line segment on the boundary joining one vertex (corner point) to another.

For a polyhedron an edge is a line segment where two faces meet.

Eulers Formula

This can be written: F + V − E = 2

Name Faces Edges Vertices

Cube 6                   12              8

Square-based pyramid 5 8 5

Triangular-based pyramid 4 6 4

Cuboid 6 12 8

Cylinder 3 2 0

Cone 2 1 1

Sphere 1 0 0