In the given figure,∆=50°. If BO and CO are the bisector of ∆B and ∆C respectively.find the measure of ∆ BOC
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Answer:
155
Step-by-step explanation:
a+ b + c = 180 (Angle in a triangle)
50 + b + c = 180
b+ c = 130 ------ eq 1
divide eq 1 by 2
1/2 (b+c) = 65 ----- eq 2
In Triangle OBC
O +1/2(b+c) = 180
O + 65 = 180 (from eq 2)
O = 115
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