user-avatar
Minhngoc124
2 năm trước
Cho tam giác ABC,các đường trung tuyến BD và CE,gọi M,N lần lượt là trung điểm của BE ,CD.gọi I,K lần lượt là giao điểm của MN với BD,CE.chứng minh: a) MK=ED= 1 phần 2 BC b) MI=IK=KN
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Exercise 3 Write the following sentences into indirect speech. 1. She said, “I can’t find my umbrella” 🡪 …………………………………………………………………………………………………………………………………………………………………………………………… 2. They said, “We are learning English now” 🡪 3.“My friend is coming next week”, Tom said. 🡪 4.“ I’ll help my mum with housework this weekend” He said 🡪 5.“We shall overcome this difficulty”, they said 🡪 6.“ My father is a doctor here”, my friend said 🡪 7.“I am going on holiday tomorrow”, the boy said to his neighbor. 🡪 8.“ You will have to finish all these exercises before next week”, the teacher said to his students 🡪 9.“I came back here early yesterday,” she said. 🡪 10.“ I’ve broken the vase,” she said 🡪 11.“I will never see you again,” the boy said to the girl. 🡪 12. He said to her, “You are my friend.” 🡪 13.Johnny said to his mother, “I don’t know how to do this exercise.” 🡪 14.“We are waiting for the school bus”, said the children. 🡪 15.Marry said, “My father died a year ago”.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team