Q. 52

In figure, n||m and p||q. If ∠ 1=75° , prove that ∠ 2=∠ 1+of a right angle.
        

Answer :

∠ 2 = 105° =75° + 30°       = ∠ 1+30° (Since ∠ 1 = 75° )       = ∠ 1+× 90° ∴ The measure of ∠ 2 = ∠ 1+of a right angle.

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