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Conditions of Vertical Angles

作者:Sarah Khaled, GeoGebra Materials Team

主题:角

Vertical angles are formed by intersecting lines. <AED and <CEB are vertical angles. <AEC and <DEB are vertical angles.

The two angles <AED and <CEB have:

选择所有适用项

A
same vertex E
B
common side
C
[ED) is the elongation of [EC)
D
[EB) is the elongation of [EA)

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