B
BA=CA
BO and CO are bosector
find x
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Answer:
A=80°
BA=CA
ANGLE B= ANGLE C
LET B AND C BE X AND X
ATQ,
80+X+X=180
=>2X=180-80
=>2X=100
=>X=100/2
=>X=50
ANGLE AND B AND C IS 50 AND 50 RESPECTIVELY
THEN 1/2 ANGLE B=>50/2=25
THEN 1/2 ANGLE C=>50/2=25
THEN ANGLE X=>180-(25+25)
=>180-50
X=>>130°
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