Question

Answer the diagram questions

Answer 1

y+z=40 (alternative interior angle) #equation 1#
y+120+40=180
160+y=180
y=180-160
y=20
From equation 1
20+z=40
z=40-20
z=20
x+y+z=180 (linear pair)
x+20+20=180
x=180-40
x=140