Chapter 6 Exercise 6.1
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Gaurav Seth 3 years, 11 months ago
1. In Fig. 6.13, lines AB and CD intersect at O. If AOC +BOE = 70° and BOD = 40°, find BOE and reflex COE.
Solution:
From the diagram, we have
(AOC +BOE +COE) and (COE +BOD +BOE) forms a straight line.
So, AOC+BOE +COE = COE +BOD+BOE = 180°
Now, by putting the values of AOC+BOE = 70° and BOD = 40° we get
COE = 110° and
BOE = 30°
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<a href="https://mycbseguide.com/blog/ncert-solutions-for-class-9-maths-exercise-6-1/" ping="/url?sa=t&source=web&rct=j&url=https://mycbseguide.com/blog/ncert-solutions-for-class-9-maths-exercise-6-1/&ved=2ahUKEwiWrY2woPLsAhWLwjgGHZVtARIQFjAAegQIBBAC" rel="noopener" target="_blank">NCERT Solutions for Class 9 Maths Exercise 6.1 ...</a>
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