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第一組-垂心
Author:
mathguo
Topic:
Orthocenter
第一組-垂心
GeoGebra
New Resources
找出對稱軸
拼砌四邊形
兩位數除以一位數（一）
柱體建築師
四邊形的特性
Discover Resources
數量與整體的相差百分率
分數除法5: x ÷ a/b (包含)
判斷錐體 2
Apollonius Problem 10 CCC poncelet
橢圓1--同心圓法
Discover Topics
Distributions
Statistical Characteristics
Pie Chart or Circle Chart
Perimeter
Confidence Interval