Matematika (Liderlik sari) Mavzu: Geometrik shakllarni sanash № 12 6*7:2=21 Formulasi:n*(n+1):2 Javob: D 21 ta Kanalga ulanish: https://t.me/xomidovashohida Biz bilan yuksak choqqilarga erishing 526 viewsШохида Хомидова, 00:09