Obtuse angle – GeoGebra
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![Obtuse angle – GeoGebra](https://www.geogebra.org/resource/NBzhT7J7/1DhGsuDhCOz2SEBN/material-NBzhT7J7.png)
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Geogebra Construction 7 - Circumcenter (fun and slow way)
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4.1.1: Angles and Triangles - Mathematics LibreTexts
![Area of obtuse angled triangle – GeoGebra](https://www.geogebra.org/resource/GTbNdR7w/EblHVR0yJkbgqOef/material-GTbNdR7w.png)
Area of obtuse angled triangle – GeoGebra
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Classifying Triangles by Angles – GeoGebra
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Rays, angles and angle bisector – GeoGebra
Solved] . 1.3 Sine, Cosine and Tangent of Obtuse Angles C TERMS: Obtuse
![obtuse triangle – GeoGebra](https://www.geogebra.org/resource/HXqEnvqR/Cd0PAqvquloejRHZ/material-HXqEnvqR.png)
obtuse triangle – GeoGebra
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Types of angles - the 5 classifications – GeoGebra
![Table 2 from Fostering Students' Development of the Concept of Angles Using Technology.](https://d3i71xaburhd42.cloudfront.net/81db7a0b66875008b418ff877800d57ae368c6ba/4-Table2-1.png)
Table 2 from Fostering Students' Development of the Concept of Angles Using Technology.
![Angles and Their Measurements – GeoGebra](https://www.geogebra.org/resource/tumkehqy/iVxtNJc5x5UBzUe5/material-tumkehqy.png)
Angles and Their Measurements – GeoGebra
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exzuberant: Really, really understanding the area of a triangle (Part 2)
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Acute, Right, or Obtuse? – GeoGebra
Dynamic visual proofs using DGS - Document - Gale Academic OneFile
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geometry, types of angles, geogebra