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Proving a Triangle is Acute, Right or Obtuse
Author:
Chris F Hansen
,
Keith Hatfield
Using Pythagorean's Theorem to Find out if triangles are acute, obtuse, or right
GeoGebra
New Resources
Witch of Agnesi - A Classical Construction
Odd or Even
Isosceles Triangle: Quick Construction
Piano. Keyboard.
Play C3 E3 G3 C4_C4
Discover Resources
Original face drawn by pen
Trigonometric ratios
Pentagon Exterior Angles
Day 1 GeoGebra worksheet Exploration
Derivative interactive
Discover Topics
Incircle or Inscribed Circle
Correlation
Vectors 3D (Three-Dimensional)
Limits
Geometric Mean