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 | 4th Oct, 2017, 01:55: PM

Expert Answer:

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

Answered by  | 4th Oct, 2017, 03:55: PM