Category: class9 maths

cbsenotes • 2012-08-22

CBSE - Class 9 - Maths - Lines and Angles (Ex. 6.3)

Lines and Angles (NCERT Ex. 6.3 + Q & A from CBSE papers) Points to remember 1. The sum of the angles of a triangle is 180º. Impossible Triangle (credits:openclipart) 2. If a

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cbsenotes • 2012-08-14

CBSE - Class 9 - Maths - Lines and Angles (Ex. 6.2)

Lines and Angles (NCERT Ex. 6.2 and Q & A from CBSE papers) 1. Corresponding angles axiom: If a transversal intersects two parallel lines- then each pair of corresponding angles is equal.

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cbsenotes • 2012-08-01

CBSE - Class 9 - Maths - Lines and Angles (Ex. 6.1)

NCERT Excercise 6.1 Q1: In Fig. 6.13- lines AB and CD intersect at O. If ∠AOC + ∠BOE = 70° and ∠BOD = 40°- find ∠BOE and reflex ∠COE. Answer: AB is a straight line and rays

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cbsenotes • 2012-07-29

CBSE Class 9 - Maths - Ch6 - Lines and Angles (Set-2)

Octahedron Lines and Angles: Q & A Q1: Prove that two lines which are both parallel to the same line- are parallel to each other. Answer: Given: Three lines l- m- n in a

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cbsenotes • 2012-07-25

Class 9 - Maths - History of Indian Mathematics - MCQs

Aryabhatta - statute at University of Astrophysics at Puneimage credits: wikipedia History of Indian Mathematics - MCQs (Questions taken from MP Board Question bank for class 9.) (Answers are pro

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