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三角形三邊長
Author:
vinnyya
GeoGebra
New Resources
讀磅
球体的体积推导
圓的基本性質
直線的斜率：水平變化 & 鉛垂變化
漂亮的摇摆曲线
Discover Resources
現學現賣test
正弦公式(證明)
Pythagorean Theorem Proof: Shearing
concyclic by Mr LO WY
三年級除法(四)：一位數除三位數
Discover Topics
Tangent Function
Square
Solids or 3D Shapes
Translation
Dilation