Chao ca ban, minh la Hoa lop 5a2 truong Tieu hoc Cam Son 2. Minh ko hoc gioi toan cho lam nen mong muon ca ban hay giup minh .O lop minh co giao ra rat nhieu bai tap nhung tu khi minh vao Oline Math thi ko thay kho khan khi gap cac bai tap kho .Minh muon cac ban hay noi cho ban cua minh vao Oline Math de chung ta ko con gap cac bai tap kho chung ta co the len Oline Math de hoc hoi va tham khao nhung bai toan don gian va nhung bai toan nang cao ,cac ban nhe !^_^ Hay cung tham gia Oline Math nhe ,o day co rat nhieu cuon sach hay va bo ich giup cho cac ban them hieu biet ve nhung bai minh chua hoc !Chuc cac ban mot ngay tot lanh .Thank you ! 

Hai ban Lan va Huong cung cat co cuan bi co vu trong buoi ban lop truong thi trung ket violympic toan truong. La co co hinh tam giac, co mot cap chieu cao va day tuong ung bang nhau va bang 30cm. Biet lop hai ban co tat ca 36 hoc sinh. Hoi de chuan bi cho moi ban trong lop co vu 1 la co thi hai ban phai dung het bao nhieu cm2 giay mau (coi phan giay cay bo ko dang ke)

                 ai nhanh mk tick cho

                 ban nao con luot kb thi kb voi mk

                  mk het luot kb roi

CAC BAN DUNG LAI DI CO  DUOC KHONG ? SAO CAC BAN LAI TU HOI TU TRA LOI CHI VI MUON KIEM LIKE CO CHU . SAO CAC CAU PHAI LAM VAY ? CAC CAU LAM NHU VAY THAT BI OI . MINH KHONG MUON XUC PHAM DEN DANH DU CUA CAC CAU NHUNG CAC CAU LAM NHU VAY LA KHONG DUNG . CAC CAU MA DUNG NHUNG TRO BI OI NHU VAY THI NHUGN NGUOI TRA LOI CHAN CHINH CAC CAU HOI SE NHU THE NAO ? CAC CAU HAY DUNG LAI DI . MINH KHONG MUON GAY ROI TREN DIEN DAN VA MINH CUNG BIET CCAC BAN RAT MUON LIKE NHUNG CAC CAU LAM VAY LA LAM VIEC KHONG TOT MINH PHAI NGAN CHUYEN NAY LAI . MONG CAC CAU HIEU