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內切圓
Author:
楊明德
Topic:
Incircle or Inscribed Circle
GeoGebra
New Resources
判斷球體
兩位數除以一位數（二）
四邊形的特性
算柱 (兩位數)
球體建築師
Discover Resources
相似圖形基本概念
三角形三邊上各一點最小周長
截痕
test
PROBLEM SOLVING(COLOUR)
Discover Topics
Statistical Characteristics
Percentages
Calculus
Circle
Coordinates