Kalkuleta bilong skelim ol 'blank' bilong wokim wanpela 'arch'
R1 - Insait 'radius' bilong 'arch'.
R2 - Ausait radius bilong 'arch'.
S - Namba bilong ol hap bilong 'arch'.
U - Angle bilong wanpela sekta bilong wanpela sekol.
Ol samting bilong program.
Kalkulesen bilong ol sais na namba bilong ol hap bilong wokim wanpela 'wooden arch'.