Using dilation to show the sum of the angles in a triangle

Autor:Duane Habecker

We all know that a half-circle has 180°. Watch the angles of this triangle move together to form a half circle. This is a demonstration that the sum of the angles in a triangle is 180°.

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Task 3 - Custom Solid 1
Steel Chair
Tangent Vector (2)
Parallelogram Linkage
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Loc Geometric: Patrate.
Triliniear
Logo
Even or Odd Degree
Complex series
Sacred Geometry

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Triángulos Equiláteros
Rombos
Funciones cuadráticas
Distribución binomial
Números Naturales