The correct option as per me is (b)
Volume of Cylinder =

Based on what we're told:
r (radius) =

h (height) =

So:
Volume of cylinder =

=
Answer:
AD=2
Step-by-step explanation:

Answer:
Parallel: G and F
perpendicular: G & H, F & H
Step-by-step explanation:
G and F are parallel because they will never cross, where as both are perpendicular to H because they intersect at 90°