Question

pls help fast with steps pls

Answer 1

Answer:

it has a very big answer so please mark me brainlliest for this(@=triangle actually I am using @ as triangle sign

Step-by-step explanation:

In @ABC

AB=AC ( Given)

therefore,angle B= angle C

By isosceles triangle theorem

hence 1/2 B=1/2 C.

angle OBC=angle OCB (1)

Now In @BOC

angle OBC=angle OCB. (from 1)

therefore,BO=OC. (2). (sides opposite to equal angles are equal)

and @BOC is an isosceles triangle

In @ABO. and @ACO

AB=AC

BO= CO

OA =OA

therefore@ABO is congruent to@ACO

angle BAO=angle OAC. (by CPCT)

hence AO bisects angle A

hence proved