O is the centre of the circle AB is the diameter calculate value of a and b
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Answered by
10
Answer:
a = 63 & b = 27, respectively.
Step-by-step explanation:
OAC is isosceles as OA = OC.
So,
a + a + 54 = 180
2a = 126
a = 63
Angle ACB = 90 [Angle in a semicircle]
a + 90 + b = 180
63 + 90 + b = 180
b = 27
Answered by
1
Answer:
A= 63
B= 27
Step-by-step explanation:
The answer is in the picture attached first.
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