Mathematics, 29.07.2021 14:00 igsgymnast

Cho tam giác ABC. Kẻ trung tuyến AM a. Chứng minh: tam giác ABM= tam giác ACM
b. Từ M kẻ MH vuông góc AB( K thuộc AC). Chứng minh: AM là đướng trung trực của HK
c. Biết AB= 10 cm; BC= 16 cm. Tính AM
d. Vẽ 2 đường trung tuyến BI và CN. Chứng minh 3/4(AB+AC+BC)

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Cho tam giác ABC. Kẻ trung tuyến AM a. Chứng minh: tam giác ABM= tam giác ACM
b. Từ M kẻ MH v...

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