CBSE Class 9 Answered
angle a and angle b form a linear pair. a-2b = 30. find a and b.
Asked by | 17 Aug, 2011, 12:00: AM
Expert Answer
As angle a and b form a linear pair 
a+b=180---(i)
a+b=180---(i)also a-2b=30-----(ii)
now subtracting (i) from (ii) we get
a-2b-(a+b)=30-180
a-2b-a-b= -150-3b= -150 b=50and a=180-50=130
Answered by | 17 Aug, 2011, 02:43: AM
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