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用極座標做時鐘的副本
Author:
YuanYee
,
唐宗浩
做一個摹擬時鐘如何?
GeoGebra
修改這個時鐘?
New Resources
找出對稱軸
畫出對稱圖形
四邉形 (四年級) 教師版
四邊形的特性
拼砌四邊形
Discover Resources
龍騰4_1-1課進9
點到直線的距離 8：觀察平行線常數項的差距
folding aeroplane
三角形的三中線交於一點(重心)
弹簧振子的 简谐运动
Discover Topics
Conic Sections
Function Graph
Scalene Triangles
Functions
Limits