由 4×(5,4,3)與(13,12,5)兩組勾股數猜想,然後豎向和橫向各尺寸都match. 說明是閉合的(向量首尾相接).
豎向: 23+5=12+16 (左邊高=右邊高)
橫向: 12+16=16+12 (上端寬=底端寬)
由 4×(5,4,3)與(13,12,5)兩組勾股數猜想,然後豎向和橫向各尺寸都match. 說明是閉合的(向量首尾相接).
豎向: 23+5=12+16 (左邊高=右邊高)
橫向: 12+16=16+12 (上端寬=底端寬)
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