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Geometry

Parent topic:: Mathematics

Circle Area (By Peeling!)
Activity
Tim Brzezinski
Proof Without Words
Activity
Steve Phelps
Area of Circles
Activity
Anthony OR 柯志明
'Tangram' Puzzle 'Cat'
Activity
GeoGebra Translation Team German
Sections of Rectangular Prisms (Cuboids)
Activity
Anthony OR 柯志明
Pythagoras's Theorem
Activity
Judith Hohenwarter
Sections of Triangular Prisms
Activity
Anthony OR 柯志明
Sections of Cylinders
Activity
Anthony OR 柯志明
Exterior Angles of Polygons
Activity
Anthony OR 柯志明
Classifying Quadrilaterals
Activity
Anthony OR 柯志明
Proofs Without Words
Book
Steve Phelps
GeoGebra Pentominoes
Activity
Duane Habecker
GeoGebra Geometry App: Beginner Tutorials with Lesson Ideas
Book
Tim Brzezinski
Illustrations Without Words
Book
Tim Brzezinski
Surface Area: Intuitive Introduction
Activity
Tim Brzezinski
Kaleidoscope
Activity
Michael Borcherds
Sections of 3D Shapes
Book
Anthony OR 柯志明
Learn GeoGebra Classic
Book
GeoGebra Team German
Cavalieri's Principle
Activity
Anthony OR 柯志明
Triangle Paradox (Missing square puzzle)
Activity
Michael Borcherds
Test yourself: Reflection
Activity
Michael Borcherds
CCSS High School: Geometry (Geometric M. & Dimension)
Book
Tim Brzezinski
Finsler-Hadwiger Action!!!
Activity
Tim Brzezinski
Maximizing Trapezoid Area
Activity
Tim Brzezinski