#### Chapters

Chapter 2 : Exponents of Real Numbers

Chapter 3 : Rationalisation

Chapter 4 : Algebraic Identities

Chapter 5 : Factorisation of Algebraic Expressions

Chapter 6 : Factorisation of Polynomials

Chapter 7 : Introduction to Euclid’s Geometry

Chapter 8 : Lines and Angles

Chapter 9 : Triangle and its Angles

Chapter 10 : Congruent Triangles

Chapter 11 : Co-ordinate Geometry

Chapter 12 : Heron’s Formula

Chapter 13 : Linear Equations in Two Variables

Chapter 14 : Quadrilaterals

Chapter 15 : Areas of Parallelograms and Triangles

Chapter 16 : Circles

Chapter 17 : Constructions

Chapter 18 : Surface Areas and Volume of a Cuboid and Cube

Chapter 19 : Surface Areas and Volume of a Circular Cylinder

Chapter 20 : Surface Areas and Volume of A Right Circular Cone

Chapter 21 : Surface Areas and Volume of a Sphere

Chapter 22 : Tabular Representation of Statistical Data

Chapter 23 : Graphical Representation of Statistical Data

Chapter 24 : Measures of Central Tendency

Chapter 25 : Probability

## Chapter 7 : Introduction to Euclid’s Geometry

#### Page 0

Define the following terms:

Line segment

Define the following term :

Collinear points

Define the following terms :

Parallel lines

Define the following term:

Intersecting lines

Define the following term

Concurrent lines

Define the following term

Ray

Define the following term :

Half-line

How many lines can pass through a given point?

In how many points can two distinct lines at the most intersect?

Given two points P and Q, find how many line segments do they deter-mine.

Name the line segments determined by the three collinear points P, Q and R.

Write the truth value (T/F) of each of the following statements:

Two lines intersect in a point.

Write the truth value (T/F) of each of the following statements:

Two lines may intersect in two points

Write the truth value (T/F) of each of the following statements

A segment has no length.

Write the truth value (T/F) of each of the following statements:

Two distinct points always determine a line.

Write the truth value (T/F) of each of the following statements

Every ray has a finite length.

Write the truth value (T/F) of each of the following statements:

A ray has one end-point only.

Write the truth value (T/F) of each of the following statement:

A segment has one end-point only.

Write the truth value (T/F) of each of the following statements

The ray AB is same as ray BA.

Write the truth value (T/F) of each of the following statement:

Only a single line may pass through a given point.

Write the truth value (T/F) of each of the following statements:

Two lines are coincident if they have only one point in common.

In the below fig., name the following:

Fill in the blank so as to make the following statement true:

Two distinct points in a plane determine a ________ line.

Fill in the blank so as to make the following statement true:

Two distinct ________ in a plane cannot have more than one point in common.

Fill in the blank so as to make the following statement

Geven a line and a point, not on the line, there is one and only__ __line pwahsiscehs through the given point and is__ __to the given line.

Fill in the blank so as to make the following statement

A line separates a plane into__ __parts namely the and the__ __itself.

#### Textbook solutions for Class 9

## RD Sharma solutions for Class 9 Mathematics chapter 7 - Introduction to Euclid’s Geometry

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Concepts covered in Class 9 Mathematics chapter 7 Introduction to Euclid’s Geometry are Equivalent Versions of Euclid’S Fifth Postulate, Euclid’S Definitions, Axioms and Postulates, Concept for Euclid’S Geometry.

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