Cho tam giac abc co o la diem chinh giua cua cang bc ( diem o chia doan bc thanh hai doan thang ob, oc bang nhau) .Goi m la diem bat ki tren canh bc sao cho mb<mc . noi am, aoGoi n la diem tren canh ac sao cho tu giac amon la mot hinh thang co day lon am va day nho on, cho biet i la giao diem cua hai duong cheo ao va mnYeu cau A) so sanh dien tich hai tam giac ain va mioB)chung to dien tich tu giac abmn va dien tich tam giac mnc bang...
Đọc tiếp
Cho tam giac abc co o la diem chinh giua cua cang bc ( diem o chia doan bc thanh hai doan thang ob, oc bang nhau) .
Goi m la diem bat ki tren canh bc sao cho mb<mc . noi am, ao
Goi n la diem tren canh ac sao cho tu giac amon la mot hinh thang co day lon am va day nho on, cho biet i la giao diem cua hai duong cheo ao va mn
Yeu cau
A) so sanh dien tich hai tam giac ain va mio
B)chung to dien tich tu giac abmn va dien tich tam giac mnc bang nhau
