# Surface area and coating area
# Scope: Closed right circular cylinder; no fillets.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

radius = 30 mm
height = 100 mm

area := 2*pi*radius*(radius+height) [cm^2]

check coating budget: area <= 300 cm^2

scenario alternative: radius = 24 mm