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平行线间的等积变形-第一题
Author:
tfflowers
GeoGebra
New Resources
第八周作业3
讀磅
双心四边形
直線的斜率
常见四边形是否是双心四边形
Discover Resources
尤拉線80528林家生螢橋國中
Ex5D#4
circle
二面角
固定周界的長方形的面積變化（周界是200厘米）
Discover Topics
Fractal Geometry
Subtraction
Continuity
Diagrams
Kite