Tanuj Singh

Suhana Ali

Asked: November 3, 2020In: Class 9

Which of the following statements are true and which are false? Give reasons for your answers.

NCERT Solutions for Class 9 Maths Chapter 5 Important NCERT Questions Introduction To Euclid’s Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.1 Page No:85 Questions No: 1 (i) Only one line can pass ...

Suhana Ali

Asked: November 3, 2020In: Class 9

Consider two ‘postulates’ given below:

NCERT Solutions for Class 9 Maths Chapter 5 Important NCERT Questions Introduction To Euclid’s Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.1 Page No:85 Questions No: 3 Consider two ‘postulates’ given below: (i) Given ...

Suhana Ali

Asked: November 3, 2020In: Class 9

Give a definition for each of the following terms. Are there other terms that need to be defined first? What are they, and how might you define them?.

NCERT Solutions for Class 9 Maths Chapter 5 Important NCERT Questions Introduction To Euclid’s Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.1 Page No:85 Questions No: 2 (i) parallel lines (ii) perpendicular lines (iii) line ...

Suhana Ali

Asked: November 3, 2020In: Class 9

If a point C lies between two points A and B such that AC = BC, then prove that AC = ½ AB. Explain by drawing the figure.

NCERT Solutions for Class 9 Maths Chapter 5 Important NCERT Questions Introduction To Euclid’s Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.1 Page No:86 Questions No: 4

Suhana Ali

Asked: November 3, 2020In: Class 9

Why is Axiom 5, in the list of Euclid’s axioms, considered a ‘universal truth’? (Note that the question is not about the fifth postulate.)

NCERT Solutions for Class 9 Maths Chapter 5 Important NCERT Questions Introduction To Euclid’s Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.1 Page No:86 Questions No: 7

Suhana Ali

Asked: November 3, 2020In: Class 9

How would you rewrite Euclid’s fifth postulate so that it would be easier to understand?

NCERT Solutions for Class 9 Maths Chapter 5 Important NCERT Questions Introduction To Euclid’s Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.2 Page No:88 Questions No: 1

Suhana Ali

Asked: November 3, 2020In: Class 9

Does Euclid’s fifth postulate imply the existence of parallel lines? Explain.

NCERT Solutions for Class 9 Maths Chapter 5 Important NCERT Questions Introduction To Euclid’s Geometry NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.2 Page No:88 Questions No: 2

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

In an isosceles triangle ABC, with AB = AC, the bisectors of Angle B and Angle C intersect each other at O. Join A to O. Show that: (i) OB = OC (ii) AO bisects Angle A

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.2 Page No:123 Questions No: 1

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

ABC is a right angled triangle in which ∠A = 90° and AB = AC. Find ∠ B and ∠ C.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.2 Page No:124 Questions No: 7

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

AD is an altitude of an isosceles triangle ABC in which AB = AC. Show that (i) AD bisects BC (ii) AD bisects AngleA.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.3 Page No:128 Questions No: 2

Tanuj Singh

Which of the following statements are true and which are false? Give reasons for your answers.

Consider two ‘postulates’ given below:

Give a definition for each of the following terms. Are there other terms that need to be defined first? What are they, and how might you define them?.

If a point C lies between two points A and B such that AC = BC, then prove that AC = ½ AB. Explain by drawing the figure.

Why is Axiom 5, in the list of Euclid’s axioms, considered a ‘universal truth’? (Note that the question is not about the fifth postulate.)

How would you rewrite Euclid’s fifth postulate so that it would be easier to understand?

Does Euclid’s fifth postulate imply the existence of parallel lines? Explain.

In an isosceles triangle ABC, with AB = AC, the bisectors of Angle B and Angle C intersect each other at O. Join A to O. Show that: (i) OB = OC (ii) AO bisects Angle A

ABC is a right angled triangle in which ∠A = 90° and AB = AC. Find ∠ B and ∠ C.

AD is an altitude of an isosceles triangle ABC in which AB = AC. Show that (i) AD bisects BC (ii) AD bisects AngleA.

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