Question 1

Who is known as the father of geometry?

Accepted Answer

Euclid is known as the father of geometry because he compiled and organized the geometric knowledge of his time into his famous treatise called 'Elements'.

Question 2

The famous book 'Elements' was written by Euclid in how many volumes?

Accepted Answer

Euclid divided his famous treatise 'Elements' into thirteen chapters, which are referred to as volumes or books.

Question 3

According to Euclid's definitions, the ends of a line are:

Accepted Answer

According to Euclid's third definition, the ends of a line are points.

Question 4

In Euclid's geometry, a surface is that which has:

Accepted Answer

According to Euclid's definition, a surface is that which has length and breadth only.

Question 5

Which of the following statements is a postulate according to Euclid?

Accepted Answer

Postulates are assumptions specific to geometry. 'A straight line may be drawn from any one point to any other point' is Euclid's first postulate.

Introduction to Euclid's Geometry — CBSE Class 9 Mathematics Important Questions & Revision Notes