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Quiz on Solving Right Triangles (Finding Side Lengths) 解直角三角形：測驗1（求邊長）
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.gmath.hk
New Resources
算柱 (兩位數)
四邊形的特性
找出對稱軸
判斷球體
兩位數除以一位數（一）
Discover Resources
畢氏定理完成20170330final
perimeter of rectangle
From Bra chart to Broken line graph
力的拆解
正方体展开的动态
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