In the diagram, O is the centre of the circle and o, find the value of y
- A.
16 - B.
37 - C.
74 - D.
127
Correct Answer: Option C
Explanation
2y + Reflex angle = 360
Reflex angle = 360 – 2y
360 – 2y = 2(106)(angles at a centre = 2ce
360 – 212 = 2y
148 = 2y
y (frac{148}{2})
y = 74o