CBSE Class 9 Answered
If x +
y = s + w, prove that AOB is straight line.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
x + y + w + s = 360o
Let x + y = s + w = t
Therefore, 2t = 360o
Or, t = 180o
Or, x + y = 180o
Thus, AOB is a straight line.
Answered by | 04 Jun, 2014, 03:23: PM
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