3 years ago

Very important question ⁉️

Mathematics

1 answer:

creativ13 [48]3 years ago

7 0

Answer: A △ABC such that the bisectors of ∠ABC and ∠ACB meet at a point O.

To prove :

∠BOC=90

∠A

Step-by-step explanation: In △BOC,

∠1+∠2+∠BOC=180

In △ABC,

∠A+∠B+∠C=180

∠A+2(∠1)+2(∠2)=180

∠A

+∠1+∠2=90

∠1+∠2=90

−

∠A

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Very important question ⁉️​

Very important question ⁉️