in Fig. 6. 16, ifx + y = w + z, then prove that AOBis a line.4.Fig. 6. – InterviewSolution

1.	in Fig. 6. 16, ifx + y = w + z, then prove that AOBis a line.4.Fig. 6.16
Answer» angle y =angle w ......1angle z =angle x ........2y+ x+z+w=360(complete angle)from 1 and 2y+y+z+z=3602(y+z) =360y+z =360÷2=180hence AOB is line

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