Question : I is the incenter of a triangle ABC. If
Option 1: 130
Option 2: 120
Option 3: 140
Option 4: 110
Correct Answer:
120
Solution :
Given, triangle ABC with I as an incenter of a triangle.
And,
We know that the incenter is the intersection point of all angle bisectors.
So,
Also,
Applying angle sum property in
or,
or,
Hence, the correct answer is 120
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