Question

in figure if AOB is a diameter of circle and AC=BC then angle CAB =​

Answer 1

Answer:

angleCAB=45°

angle C will be 90°

AC=BC

angles opposite to equal sides,then angles will also be equal

using angle sum property

angleCAB=45°

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: