how to do this question a and b
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Answered by
1
Answer:
It can be done by linear axiom method
Step-by-step explanation:
a+65=180.
a==180-65
a=115
Answered by
1
Step-by-step explanation:
a+ 65°=180 °( adjacent angles on the straight line )
a=180°-65°=115°
∠AOC+∠COD+∠DOB=180°( adjacent angles on the straight line )
a+90°+30°=180°
a + 120°=180°
a = 180°-120°
a=60°
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