CBSE Class 9 Answered
In
fig., l1||l2 and m1||m2.
Prove that 1 + 2 = 180o.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
1 = 3 (corresponding angle )
3 = 4 (corresponding angle)
1 = 4
But, 4 + 2 = 180o (linear pair)
1 + 2 = 180o
Answered by | 04 Jun, 2014, 03:23: PM
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