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三角形面積公式 1/2 bc sinA
Author:
羅驥韡 (Pegasus Roe)
Topic:
Area
GeoGebra
New Resources
錐體建築師
球体的体积推导(优化版)
【案例】2018年全国1卷理科12题
兩位數除以一位數(一)
異分母分數減法
Discover Resources
尤拉線
等腰三角形 - 等角對等邊
線性組合3:正方形
斯坦納-雷米歐司(Steiner-Lehmus)定理推廣
ie 8
Discover Topics
Geometric Mean
Centroid or Barycenter
Arithmetic Operations
Trapezoid
Statistics