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題 4 (附加題) ***
Author:
lam
GeoGebra
只需列出算式,不需要計算答案。(取π = 3.14)
𝜋
New Resources
兩組對邊相等和有直角的四邊形
美國國旗 (Claude 版)
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
拼砌四邊形
Discover Resources
扇形面積
task 5
Sunline
平行四邊形堆垛
数一数这是几边形
Discover Topics
Median Line
Area
Percentages
Centroid or Barycenter
Exponent