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Angles in a triangle add up to 180°

Author:John Tranter
Topic:Angles, Geometry
Drag the points to see how the angles change.

New Resources

  • Right Triangle Trig Ratios: sin, cos, tan
  • Folding door
  • z`]]
  • Angle Bisector: Quick Warm Up Questions
  • Portions of a Sphere

Discover Resources

  • Transformations of Functions (I)
  • A conic in a triangle
  • Checik my thingy out boiiiis!!
  • สามเหลี่ยมพีทาโกรัส
  • Introduction to Circle Inversions

Discover Topics

  • Numbers
  • Incircle or Inscribed Circle
  • Logarithmic Functions
  • Vectors 2D (Two-Dimensional)
  • Differential Equation
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