If I is the incentre of ΔABC , if ∠ BAC = 800 , then what is the measure of ∠ BIC?
-6.JPG)
If I is the incentre of ΔABC, then ∠ BIC = 90 0 + ∠ BAC/2 ∠ BIC = 90 0 + ∠ BAC /2 ∠ BIC = 900 + 80/2 ∠ BIC = 900 + 400 ∠ BAC = 1300
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