The base diameter of a conical helix is 100 mm. The angle between the base and slanting side is 45 degrees. Pitch of helix is 5 mm. What is the height of helix and number of revolutions?

The base diameter of a conical helix is 100 mm. The angle between the

1.	The base diameter of a conical helix is 100 mm. The angle between the base and slanting side is 45 degrees. Pitch of helix is 5 mm. What is the height of helix and number of revolutions?
A.	50 mm, 10
B.	25 mm, 5
C.	30 mm, 7
D.	100 mm, 15
Answer» B. 25 mm, 5