In the adjacent figure find x and y when given that O is the centre of the circle
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Given : O is the centre of the circle
To Find : x and y
Solution:
O is the center of circle
=> BD is diameter
Hence ∠BAD = 90°
∠BAD = 75° + x
=> 75° + x = 90°
=> x = 15°
∠ADB + 90° + 35° = 180° ( sum of angles of triangle )
=> ∠ADB =55°
∠ACB = ∠ADB ( angle by same arc AB)
=> ∠ACB =55°
=> y = 55°
x = 15° and y = 55°
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