Question

in figure if AB II CD, CD ll EF and y : z = 3 : 7 find the value of x​

Answer 1

Answer:

let y=3q and z=7q

since AB II CD, CD ll EF

so ab//ef

if ab//ef

x=z (alt int angles)

x=7q

since AB II CD

x+y=180° (Co int angles )

7q+3q=180°

10q=180°

q=180°/10

q=18°

so x=7(18°)

x=126°