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World's Hardest Easy Geometry Problem.
Author:
Terry Chau
Topic:
Geometry
幾何老題１
GeoGebra
New Resources
三位數除以一位數（一）
兩位數加法
【案例】圆柱体内放置一个大球六个小球
【案例】2013年安徽高考15题
算柱 (兩位數)
Discover Resources
test01
volume of tetrahedron and parallelepiped
congruent activity
Hamid Naderi Yeganeh segment3
Exploration of the conditions for congruent triangles.
Discover Topics
Similar Triangles
Logic
Sphere
Arithmetic Operations
Correlation