GeoGebra
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  • Geometric Construction 幾何作圖
  • Basics 基礎
  • Line Segments 線段
  • Triangles 三角形
  • Circles 圓形
  • Advanced 進階

Geometric Construction 幾何作圖

Author:
TLLF
A collection of construction problems with rulers and compasses 尺規作圖問題集 The majority of problems are adopted from the iPad app GeoGon (http://iappideas.com/geocon). GeoGebra 互動數學教室 http://www.geogebra.hk
Geometric Construction 幾何作圖

Table of Contents

  • Basics 基礎

    • Free Construction 隨意畫
    • Equilateral Triangle 等邊三角形
    • Midpoint 中點
    • Perpendicular Bisector 垂直平分線
    • Angle Bisector 角平分線
    • Perpendicular Lines 垂直線 (1)
    • Perpendicular Lines 垂直線 (2)
    • Parallel Lines 平行線
    • Side-Side-Side 邊邊邊
  • Line Segments 線段

    • Free Construction (with more tools) 隨意畫
    • Line between Points 與兩點等距的直線
    • Copy of Angle 複製角度
    • Line and Angle 線與角 (1)
    • Line and Angle 線與角 (2)
    • Trisect Line Segment 三分線段
  • Triangles 三角形

    • Circumcircle 外接圓
    • Incircle 內接圓
    • Equilateral Triangle over Circle 外接等邊三角形
  • Circles 圓形

    • Rectangle in Circle 長方形的外接圓
    • Right-angled Triangle in Circle (1) 圓內直角三角形
    • Right-angled Triangle in Circle (2) 圓內直角三角形
    • Tangent at a Point 圓上點的切線
    • Tangent from External Point 由圓外點畫切線
    • Three Mutually Tangent Circles (1) 三圓互切
    • Three Mutually Tangent Circles (2) 三圓互切
  • Advanced 進階

    • Equidistant Point 等距點
    • Chord Trisection 三分弦
    • Equilateral Triangle on Parallel Lines 平行線上的等邊三角形
    • Equilateral Triangle on Right Angle 垂直線上的等邊三角形
Next
Free Construction 隨意畫

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