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: Linear Equations in Two Variables
Chapter 8: Co-ordinate Geometry
Chapter 9: Introduction to Euclid’s Geometry
Chapter 10: Lines and Angles
Chapter 11: Triangle and its Angles
Chapter 12: Congruent Triangles
Chapter 13: Quadrilaterals
Chapter 14: Areas of Parallelograms and Triangles
Chapter 15: Circles
Chapter 16: Constructions
Chapter 17: Heron’s Formula
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 9: Introduction to Euclid’s Geometry
9.1 [Page 8]
RD Sharma solutions for Mathematics for Class 9 Chapter 9 Introduction to Euclid’s Geometry 9.1 [Page 8]
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:
(i) five line segments.
(ii) Five rays.
(iii) Four collinear points.
(iv) Two pairs of non-intersecting line segments.
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.
[Page 9]
RD Sharma solutions for Mathematics for Class 9 Chapter 9 Introduction to Euclid’s Geometry [Page 9]
How many least number of distinct points determine a unique line?
How many lines can be drawn through both of the given points?
How many lines can be drawn through a given point.
In how many points two distinct lines can intersect?
In how many points a line, not in a plane, can intersect the plane?
In how many points two distinct planes can intersect?
In how many lines two distinct planes can intersect?
How many least number of distinct points determine a unique plane?
Given three distinct points in a plane, how many lines can be drawn by joining them?
How many planes can be made to pass through a line and a point not on the line?
How many planes can be made to pass through two points?
How many planes can be made to pass through three distinct points?
Chapter 9: Introduction to Euclid’s Geometry
RD Sharma solutions for Mathematics for Class 9 chapter 9 - Introduction to Euclid’s Geometry
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Concepts covered in Mathematics for Class 9 chapter 9 Introduction to Euclid’s Geometry are Concept for Euclid’S Geometry, Euclid’S Definitions, Axioms and Postulates, Equivalent Versions of Euclid’S Fifth Postulate.
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