The value of x and y are 115 degree and 74 degree respectively by using the vertically opposite angle concept option second is correct.
What is a circle?
It is described as a set of points, where each point is at the same distance from a fixed point (called the centre of a circle)
To find the value of x:
x = (360 – 60 - 70)/2
Because the complete angle is 360 degree and x and its opposite angle are vertically opposite angle which is equal.
x = 230/2
x = 115 degree
To find the value of y:
From the angle theorem:
y = 180 - (2×53)
y = 74 degree
Thus, the value of x and y are 115 degree and 74 degree respectively by using the vertically opposite angle concept option second is correct.
Learn more about circle here:
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