Question

explain ......pls...i cant understand .....​

Answer 1

Answer:

sum of angles round a point = 360

x+y+w+z = 360

since( x+y)=(w+z)

therefore, 2(x+y)= 360

x+y = 180

since x+y = 180

therefore, they are linear pair

therefore, AOB is a line.

Answer 2

if u add x and y, the sum will be 180 by linear pair and,

if u add w and z, its sum will also be 180 by linear pair...........

I have posted two methods..........u can use any one of them

I think 2nd one is best

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Hope it might helped u

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