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CBSE Class 9 Answered

In the figure, O is the centre of the circle and begin mathsize 12px style angle space AOC space equals space 160 degree. space Prove space that space 3 angle space straight y space minus space 2 angle space straight x space equals space 140 degree end style.
Asked by Topperlearning User | 04 Oct, 2017, 01:55: PM
answered-by-expert Expert Answer

Since, angle at the centres is twice the angle at the remaining part of circumference.

Answered by | 04 Oct, 2017, 03:55: PM

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CBSE 9 - Maths
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