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a=40
So, 2a=80
5b+80=180
5b=100
B=20
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So, 2a=80
5b+80=180
5b=100
B=20
Your answer
Answered by
0
Step-by-step explanation:
this is the correct explanation of this ques
LP= Linear pair
linear pair = if one ray is standing on straight line and two angles are formed then we can apply LP
a+b=180°
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