Official Answer
Answer
Omishni qoochoo akka armaan gadiitti shallagama: PG = (pi * D * d * S_y) / (K_g * FOS), bakka D daayameetira boora/shaaftii, d gad fageenya gooroo, S_y cimina oomisha meeshaa, fi K_g sababa sirreeffamaa dha.
