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Proof of Pythagoras' theorem (Henry Perigal)
Author:
Abbass Maanna
GeoGebra
New Resources
Bottema's Theorem
van Aubel's Theorem
Isosceles Triangle: Quick Construction
Play C3 E3 G3 C4_C4
Angles and Intersecting Lines: Quick Investigation
Discover Resources
Secant plane in cone
StrattonR
Triangle Inequality
Area and Perimeter Notes
Conjugate Function
Discover Topics
Tangent Line or Tangent
Continuity
Parabola
General Quadrilateral
Isosceles Triangles