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2018 DSE Q.17
Author:
BBSS4CD
GeoGebra
New Resources
常见四边形是否是双心四边形
第八周作业1
百分數及其應用
龙形曲线-分形龙2
第三周作业效果演示
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劉徽的「割圓術」
封閉區域著色２
四角柱體（長方體）的截面
軌跡觀察
Exploration of the conditions for congruent triangles.
Discover Topics
Special Points
Percentages
Algebra
Cone
Upper and Lower Sum or Riemann Sum