title: Opa va skeda wal soluma isu gentim koe barkril is va barkrilekwa ik barkrilotsa ik barkrilidja
text: Ovat : koe BMC barkril, B = 120° isen C = 30° numen M = 30° ; numen barkril tir dem toloy miltaf kril pokeyon gu B isen BM= 0,5.