find angle ACB
angle ADB
angle OAB
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Answer:
ANGLE ACB = 54°
". OAB = 36°
ANGLE ADB = NOT SURE
Step-by-step explanation:
ANGLE OAB
X+X+108°=180°
2X+108°=180°
2X=180-108°
X = 72/2 = 36
ANGLE ACB
ANGLE CAB = 36°
SO ANGLE ABC = 36+54°=90 (right angle )
SO ACB = X+36+90=180°
X+126=180°
X= 180-126= 54°
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