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劉虹圻內心

Author:呂麗珠

New Resources

長方體平面投影 (Codex版)
找出對稱軸
四邊形的特性
Fibonacci Clock
直角坐標平面上的旋轉變換

Discover Resources

海龍公式與內切圓半徑
SIMPLE EQUATION
圓內弦中點軌跡
△ A B E △ABE 、 △ A C E △ACE 的內切圓半徑分別為 r 2與 r 1,兩者可以互換嗎
平行四邊形面積

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Reflection
Special Points
Expected Value
Quadratic Functions
Statistics

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