Question

In figure 2.24, measures of some angles
are shown. Using the measures find the
measures of Zx and Zy and hence
show that line 1 || line m.​

Answer 1

Answer:

y + 50 = 180 ....(linear pair)

y = 180 - 50

y = 130

also, x + 130 = 180......(linear pair)

x = 180 - 130

x = 50

now x + y = 130 + 50 = 180

but these are co interior angles

Hence, l || m.

proved.

Answer 2

Answer:

this is correct..................