Rotation turns an object about a fixed point. This fixed point is called _______.

Solution:

We know that

Rotation turns an object about a fixed point

This fixed point is called the centre of rotation.

Therefore, the fixed point is called the centre of rotation.

✦ Try This: How many vertices, edges and faces are present in a sphere?

We know that

Vertex is the point where two or more lines or edges meet to form an angle.

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

A face refers to any single flat surface of a solid object.

So the sphere has 0 vertex, 0 edges and 1 faces.

Therefore, the sphere has 0 vertex, 0 edges and 1 faces.

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 14

NCERT Exemplar Class 7 Maths Chapter 12 Sample Problem 6

Rotation turns an object about a fixed point. This fixed point is called _______.

Summary:

Rotation turns an object about a fixed point. This fixed point is called the centre of rotation.

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