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直角三角形的內心與相似
Author:
鍾文欽
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（一）
拼砌四邊形
異分母分數減法
算柱 (兩位數)
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Fraction to Decimal
glt-h02-00-正方形折成三角錐
How to draw a heptagon with ruler andcomp…
蛇行腳踏車
閱讀量杯
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Ratios
Scalene Triangles
Geometric Distribution
Hypothesis Testing
Trigonometric Functions