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A Triangle's Angles
Author:
Steve Kifowit
The sum of the measures of the interior angles of any triangle is 180°.
GeoGebra
New Resources
Drag that Point!
Construct a Square
Play C3 E3 G3 C4_C4
Rotating Points (Optical Illusion)
Simplifying Radicals: Geometric Thin Slice
Discover Resources
arg(z-z1)-arg(z-z2)
kite
C3 Ion 2007
Quadratics
Dissecting a Cube into 4 Equal Parts
Discover Topics
Rotation
Pie Chart or Circle Chart
Sine
Centroid or Barycenter
Right Triangles