Question

What is the sum of the total number of vertices of Sphere, the total number of vertices of Cone and the total number of vertices of Cube?

• A. 8
• B. 9
• C. 10
• D. 11

Answer 1

The correct option is B 9

• The common endpoint of two or more rays or line segments is known as Vertex.

Cube has 8 Vertices as in the figure below.
Cone has 1 Vertex as in the figure below.

Sphere has 0 Vertices as in the figure below.

$\therefore$ Number of vertices of Cube + Number of vertices of Cone + Number of vertices of Sphere
= 8 + 1 + 0
= 9