Re: [中學] 請問幾題小學生的算法
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※ 編輯: wallowes (203.204.210.81 臺灣), 01/16/2025 13:46:58
※ 編輯: wallowes (203.204.210.81 臺灣), 01/16/2025 13:50:56
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It's prima facie that FG is equally divided into 3 segments FQ,QR, and RG, and
here is the proof:
1) draw a line FC
2) in the triangle BCF, G is the mid point of BC, and P is the mid point of FC.
3) Hence, BP and FG are both medians of the triangle BCF.
4) accordingly, FG is divided into FR and RG and the ratio therebetween is 2:1.
Similarly
FQ:QG=1:2
Therefore, FQ:QR:RG = 1:1:1#
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