NCERT Solutions Class 9 Mathematics Chapter 6 Lines and Angles Variables

Exercise 6.1 Q.1) In Fig. 6.13, lines AB and CD intersect at O. If ∠𝐴𝑂𝐶 + ∠𝐵𝑂𝐸 = 70° and ∠𝐵𝑂𝐷 = 40°, find ∠𝐵𝑂𝐸 and reflex ∠𝐶𝑂𝐸. Sol.1) Given, ∠𝐴𝑂𝐶 + ∠𝐵𝑂𝐸 = 70° and ∠𝐵𝑂𝐷 = 40° A/q, ∠𝐴𝑂𝐶 + ∠𝐵𝑂𝐸 + ∠𝐶𝑂𝐸 = 180° (Forms a straight line) ⇒ 70° + ∠𝐶𝑂𝐸 = 180° ⇒ ∠𝐶𝑂𝐸 = 110…

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CBSE Class 9 Mathematics Lines And Angles Notes

  CBSE Class 9 Concepts for Lines and Angles. Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and CBSE…

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