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立體測量：兩仰角
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
長方體平面投影 (Codex版)
美國國旗 (Codex, 2026.10.06)
直角坐標平面上的旋轉變換
算柱 (兩位數)
Earth with coastline
Discover Resources
過圓內一點最短弦
二項分佈
同心圓和線段-2(最外圓大小固定)
Bisects Chord
正方形纸片剪出正三角形（顶点在边上）
Discover Topics
Fractions
Dilation
Step Functions
Surface
Rational Numbers