1.

In fig ac and bc are opposite rays. If 2x-3y=60. Find x and y.

Answer»

2x - 3Y = 60 ------(1)

x + y = 180 ( Linear PAIR)

=> 3X + 3y = 540 ------(2)

On adding EQUATION 1 and 2, we get

5x = 600

=> x = 120°

y = 180 - x

y = 180 - 120

y = 60°



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