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正弦定理的验证
Author:
junfeilx
GeoGebra
New Resources
兩位數除以一位數（二）
異分母分數減法
三位數除以一位數（一）
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
Discover Resources
proof SSS
雪花(碎形)
面積切割
幾何問題_圓01
切線性質A
Discover Topics
Rhombus
Integral Calculus
Kite
Real Numbers
Vectors 2D (Two-Dimensional)