Question

In the above fig,if AB||CD ,CD||EF and y:z=3:7, find x​

Answer 1

Answer:

x=126.........................

Answer 2

Answer:

as ABIICD and CDIIEF

thus,ABII EF

now, z=x ( alternate interior angles)-------(i)

let y=3t and z = 7t

then from (i) x=z= 7t-------(ii)

now as ABIICD

x+y =180⁰ (consecutive interior angles)

on putting the value of x&y from (ii) we get,

3t+7t=180⁰

10t=180⁰

t=180⁰/10

t=18

thus x=z=7t= 7×18= 126⁰

therefore, the value of x=126⁰ans

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