Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Angle in a semi-circle

Author:Nicola Trubridge
Topic:Circle

Theorem 2. Angle subtended at the circumference by a semicircle is 90°

New Resources

  • အခြေခံ data အခေါ်အဝေါ်များ
  • Conway Circle Theorem
  • Model sferyczny - sześcian-ośmiościan
  • רישום חופשי
  • Model sferyczny - dwunastościan-dwudziestościan

Discover Resources

  • การแยกพหุนามดีกรี 2
  • Vertical Angles in Cyclic Quadrilaterals
  • Complex Numbers (Polar Form)
  • Zlati rez kvadrati...
  • Diagonals of Quadrilaterals

Discover Topics

  • Expected Value
  • Triangles
  • Constructions
  • Line Segment
  • Arithmetic
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2026 GeoGebra®