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The angles of a triangle always sum to 180 degrees.
Author:
Andrea Siwik
GeoGebra
New Resources
z`]]
Transforming Random Variables
Which Quadrilateral is Which?
Sine and Cosine on the Unit Circle
Tangent Vector (2)
Discover Resources
Dynamic proofs
Trapez_u_trokut
สามเหลี่ยมพีทาโกรัส
รูปคลี่พีรมิด
Regular hexagon cross-sections of a dodecahedron
Discover Topics
Definite Integral
Calculus
Right Triangles
Logarithm
Centroid or Barycenter