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Angles on a straight line add up to 180°

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

New Resources

  • Parallel Lines and Angles: Thinking Classroom Exploration
  • 巧算長方形周界
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
  • Perimeter of a Rectangle with Unknown Sides
  • ANGLE

Discover Resources

  • Theorem 02 - Isosceles Triangle
  • Snowflake 2
  • Joanna Huang - Geogebra pythagorean theorem a
  • equilateral triangle
  • Exploration: Arc Length and Sector Area APS

Discover Topics

  • Functions
  • Circumcircle or Circumscribed Circle
  • Interest Calculation
  • Tangent Function
  • Quadratic Equations
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