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GeoGebra
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The sum of the angles of a triangle is 180
Author:
zacharias thomas
GeoGebra
New Resources
Odd or Even
Introduction
Angles and Intersecting Lines: Quick Investigation
Construct a Square
A retro cityscape with mathematics
Discover Resources
pentagone2
Solar Oven Reflections
PappusDown.
rotation 180
trial
Discover Topics
Fractions
Division
Symmetry
Arithmetic
Logic