Drawing Quadrilaterals on Grid Paper and Pinboard
2012-10-30 07:58
This GeoGebra example demonstrates how to construct various quadrilaterals on grid paper or a pinboard. Using commands such as Sequence, Polygon, Rotate, and GCD, it dynamically generates quadrilaterals and automatically annotates their geometric properties: equal sides shown in the same color, right angles and equal angles marked, and parallel sides indicated. Adjustable width and height paramete
In collections
Quadrilaterals (2001 Old Curriculum Teacher Edition)
4th Grade Quadrilaterals (Student Edition)
Quadrilaterals: Interactive Geometry
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<expression label="text8" exp=""拖拉 點及 點，在圖中加上二條直線， 與原有的直線組成一個平行四邊形。""/>
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<element type="boolean" label="Q3a">
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<expression label="text9" exp=""拖拉 點、 點及 點，在圖中加上三條 直線，與原有的直線組成一個長方形。""/>
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<element type="boolean" label="Q5a">
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<expression label="text4" exp=""紅""/>
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<expression label="text12" exp=""黃""/>
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<expression label="text13" exp=""橙""/>
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<fixed val="true"/>
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<element type="boolean" label="Q6">
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<labelMode val="0"/>
<auxiliary val="true"/>
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<expression label="text4_1" exp=""橙""/>
<element type="text" label="text4_1">
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<expression label="text12_1" exp=""黃""/>
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<element type="image" label="pic1">
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</geogebra>