In Fig. 9.50, what is value of x?A. 35B. 45C. 50D. 60

In

ABC + ACB + CAB = 180o

5y + 3y + x = 180o

8y + x = 180o (i)

ABC + CBD = 180o (Linear pair)

5y + 7y = 180o

y = 15o

Putting values of y in (i), we get

8 * 15 + xo = 180o

x = 60o

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