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The angle in a semi-circle is a right angle
Author:
John Tranter
Topic:
Circle
,
Geometry
Drag the points arount the circle. See how the angle marked is always a right angle.
GeoGebra
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Introduction
Construct a Square
Simplifying Radicals: Geometric Thin Slice
Ellipse, Hyperbola and Circle as Envelopes
Ellipse as Envelope - Correspondence Method
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Measuring Angles Using Protractor
Résolution
octoedre developpe
Untitled
Bài tập 2b trang 63
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Hyperbola
Cuboid
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Trigonometry
Symmetry