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Altitudes of a triangle
Author:
Zoltán Kovács
GeoGebra
Check whether the altitudes of a triangle are concurrent. Use the Relation tool.
New Resources
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Example of using color palette
Calendar Puzzle
Proving Triangles Congruent (2): Multi-Step Transformations
အခြေခံ data အခေါ်အဝေါ်များ
Discover Resources
Triangle Set 5
Inscribed angle and Central angle
Percentage change
Parametric: Tangents and Normals 1.1
Модел на правилна призма
Discover Topics
Line Segment
LCM and GCD
Special Points
Parabola
Conic Sections