Math, asked by Swapnil777, 1 year ago

in given figure the bisector of angle a b c and Angle B C A intersect each other at point O if angle BOC is equal to 100 degree then angle A is

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Answered by sharingan

answer is 180 deggrees hopefully it helps in your examination

Swapnil777: no problem it's 20'

Answered by kangnaasingh

angle BOC= 90+1/2*A
100=90+1/2*A
100-90=1/2*A
10=1/2*A
A=2*10
A=20

kangnaasingh: plz mark brainliest

Swapnil777: but how can you say that angle BOC is equal to 90+1÷2 of angle A

kangnaasingh: just check out Rd sharma grade 9 this formula has been proved

kangnaasingh: if you use this in your exams first you will have to prove this if it is for 3 or 2 marks

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