giai dum minh vs nho ve ca hinh nua ????????????
cho duong tron(o-r) day BC<2r .Ke tiep tuyen vs (o) tai B vaC ,chung cat nhau tai A.Tren cung nho BC lay mot diem M roi
ke cac duong vuong goc vs MI,MH,MK xuong cac canh BC,AC,AB. Goi giao diem cua BM,IK la P va giao diem cua CM,IK la Q
a,CM:tam giac ABC can
b,Tu giac BIMK,CINH noi tiep
c,MI binh=MH.MK
d,QP vuong goc vs MI
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