Question

please solve question no 7

Answer 1

$p = 30 \: \\ q \: and \: r = 60$

Answer 2

angle C = 30 = p (alternate interior angle)
angle p + angle q = 90 degree
30 + q = 90
q = 90 - 30
q = 60
q = r
r = 60

I hope this will help you..