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重心 內心 垂心 外心
Author:
18李泰源
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Unit 3 Constructions - Copy an Segment
Unit 3 Constructions - Angle Bisector
Eratosthenes measure of the circumference of Earth
AROC and IROC
geo constructions
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Secant to Tangent
Polinômio Complexo
Wumps
polar ဖြင့်ခရုပုံဆွဲသားခြင်း
aqua
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Cosine
Reflection
Tree Diagrams
Percentages
Cube