tuanvy040500 tuanvy040500

18-06-2021
Mathematics

contestada

Có 7 cây hãy trồng thành 6 hàng, mỗi hàng 3 cây?

Respuesta :

vannhv02425 vannhv02425

18-06-2021

Answer:

Step-by-step explanation:

Bạn vẽ 1 tức giác ABCD lồi sau đó nối AB và CD cắt nhau tại E, AD và BC cắt nhau tại F, AC và BC cắt nhau tại G. Trồng 7 cây vào các điểm ABCDEFG l. Ta có sáu hàng là ABE, DCE, BCF, ADF, ACG, BDG

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