In a cross sectional view they will now form {HEAD ~ a slimm triangle} with {TAIL ~ the outer diameter} as its apex and the central cylinder wall as its base 
with
In a cross sectional view they will now form { HEAD ~ a slimm triangle } with { TAIL ~ the outer diameter } as its apex and the central cylinder wall as its base
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH