In Fig. 8.123, the value of y is

Question

Philoid · Accepted Answer

3x + y + 2x = 180^o (Linear pair)

5x + y = 180^o (i)

From figure,

y = x (Vertically opposite angles)

Using it in (i), we get

5x + x = 180^o

6x = 180^o

x = 30^o

Thus,

Y = x = 30^o