In Fig. 6.29, if AB lI CD, CD II EF and y:z::3:7, find x. – InterviewSolution

1.	In Fig. 6.29, if AB lI CD, CD II EF and y:z::3:7, find x.
Answer» let the ratio be cso angles y and z are 3c and 7c As y+z = 180°10c = 180°c = 18°so angle = 18°×3 = 54°7c = 7×18° = 126°z = x = 126°

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