Question

20. In Fig. 6.35, three straight lines AB, CD and EF
intersect at a point O forming the angles as shown.
Find the values of x, y, z and r.
OD
A
E
yl x
ad to 900
ro
90°
2760°oals alus
KEA
B.
2003
Fig. 6.35​

Answer 1

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