Kalkulesen bilong 'canopy' o 'canopy material'
Plis soim ol mak yu laikim long milimita
X - bikpela bilong visor
Y - hait bilong visor
Z - longpela bilong 'visor'
Dispela program em i bilong skelim ol samting bilong wanpela 'semicircular canopy' o 'canopy'.
Long dispela kalkulesen, yu ken painimaut longpela na eria bilong 'visor'. Na 'radius' bilong 'canopy arc'.