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An angle inscribed in a semicircle is always a right angle.

Author:Ortus Math

New Resources

  • Domain of f(x,y)
  • Rule of Sarrus - Determinant of a 3×3 Matrix
  • Fractal Tétraèdre. Dilatation -1/2 centre triangles
  • The Gardener's Ellipse
  • Rectangle Construction Template (V2)

Discover Resources

  • First Principles Differentiation
  • Tetraedro
  • Pythagoras Hill
  • GeoGebra+
  • Opposite angles cyclic quad
  • Applet. Finding Geometric Medians and Geometric Centers on a circle from discrete sample points.

Discover Topics

  • Circle
  • Pyramid
  • Difference and Slope
  • Incircle or Inscribed Circle
  • Planes
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