Question

If AOB is a diameter of circle and Ac=BC then find angleCAB

Answer 1

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Answer 2

Answer:

We know that the angle at circumference subtended by the diameter of the circle is right angle.

Thus ∠ACB=90

In △ABC

 AC=BC (given)

=>∠CAB=∠CBA

Now,

 ∠CAB+∠CBA+∠ACB=180  

 

=>∠CAB+∠CAB=180−90

=>∠CAB=  90/2

=>∠CAB=45  

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Step-by-step explanation: