Question

find the measures of x°,y° and z° in the figures below where l||QR

Answer 1

x=65
y=60
z=55
Isn't it.......

Answer 2

in line L
x+60
$in \: line \: l \\ 60 + x + 55 = 180 \\ x = 180 - 115 = 65 \\ \\ then \\ \\ 55 = z(alternte \: angls) \\ 60 = y(alternate \: interior \: angels) \\ threfore \: x = 65 \: \: y = 60 \: \: z = 55$