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花瓣
Author:
spkwan
三角形 & 花瓣
下面是兩個等邊三角形。請看啡色的一個怎樣環繞中間綠色的轉動,產生花瓣的圖形。
三角形 & 花瓣 (button-control)
GeoGebra
三角形 & 花瓣
若一個等邊三角形的周界是15cm,找出花瓣圖形的周界。
三角形 & 花瓣 (manual-control)
GeoGebra
想一想
這道數學題還可以怎樣作延伸討論? 正方形 & 花瓣又如何? 正五邊形 & 花瓣又如何?
HINTS
https://www.ggbm.at/ptcntaqv
https://www.ggbm.at/bqjb2kxh
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