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陳兪宏
阿凱老師的幾何問題
GeoGebra
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Nested spiral octagon
Fibonacci Clock
四邊形的特性
三半圓間的相切圓(Codex╱2026.10.07)
算柱 (兩位數)
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謝爾賓斯基三角形
函數
基測數學 100-1-33 判斷到點與到線等距的點
angles sum of a triangle 2
扇形面積公式3
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Frequency Distribution
Hypothesis Testing
Median Line
Numbers
Variance