Giusp em đi ạ!! Em hứa sẽ vote 5 sao + tlhn ạ!!! plzzzz Cho tam giác ABC, có trọng tâm G, d là đường thẳng bất kì không cắt các cạnh của tam giác. Chứng minh rằng khoảng cách từ G đến d bằng một phần ba tổng khoảng cách từ A,B,C tới d.

Giúp mình câu 2 và 3 đê 6 với ạ

các bác ơi giúp toii với! tôi cần gấp

cho tam giác abc a, Lấy điểm D thuộc ac sao cho dc=2ad, gọi i là giao điểm của bd,am. cmr ai=mi b, gọi i là trung điểm am, d là giao điểm bi và ac. cmr dc= 2ad cần gấp hình vẽ và lời giải nx nha

Mn ơi giúp em bài này với ạ em đng cần gấp ạ

Cho tam giác ABC cân tại Ạ . Trung tuyến BM, CN . Gọi G là giao điểm của BM và CN . Chứng minh rằng: a, BM=CN b,Tam giác BGN= tam giác CGM c, AG là đường trung trực của M d, MN song song BC e, AB+2BC>AI +2BM MN<BM+CN :3

Read the following text and mark the best answer for the question below. When was Edison born? in 1878 in 1847 in 1877 in 1500

Exercise 13. Cho dạng đúng của từ in đậm tiếng Anh. 1. It isn't very ………..that Paula is at home, is it? She usually works at this time. (like) 2. Megan was told by her dietician that she was becoming …………thin and should eat more. (danger) 3. ……….is the spice of life, says the proverb and everyone should try and do new things and meet new people to avoid becoming bored. (vary) 4. Harry had a difficult …………. and was brought up by an aunt and uncle living in the country. (child) 5. The whole dispute began after a small …………. over the money needed to finance the new company. (agree) 6. The introduction of insecticides in the 20th Century ………agriculture across the world. (revolution) 7. All the coastal towns in this area are …….. by strong tradition of dance and there is a festival of dance that takes place every August. (character) 8. My company has spent a lot of money building a new, ………factory which will nearly double production. (computer)

Exercise 14. Cho dạng đúng của từ in đậm tiếng Anh. 1. I was just trying to be …….. towards him and he accused me of wanting his money! (friend) 2. The south-west of England, for example Devon and Cornwall, is known as the …….part of the United Kingdom. (sun) 3. What you may think is ……….is really just over-enthusiasm. He would never harm anyone. (hostile) 4. Anyone being rude and ……… to our staff will be asked to leave the premises immediately. (abuse) 5. Men have more of a ……. to put weight on around the waist and stomach areas and this is something they should be aware of. (tend) 6. Three weeks after winning the lottery, Daniel Perkins had the ……. to lose a court case in which he was being sued for nearly $2million. (fortune) 7. The pharmaceutical company's …….. have discovered a better way of combining medicines to create a flu remedy. (search) 8. The babies were put up for ………..when their mother was jailed for her part in the murder. (adopt)

Câu 15..Hãy điền vào chỗ chấm để hoàn thành câu lệnh vẽ hình tròn sau?Repeat …[fd… rt…] * B.360,1,1 D 1, 360, 10 A. 360,360,360 C. 1,1,1