


Geoboard
for iPad Pythagorean Theorem Proof by Leonardo. 

Dynamic Geometry Problem 1447.
Outer Vecten Point. Stepbystep
illustration using GeoGebra. 

Geometry Problem 1282.
Three Squares, Common Vertex, Midpoint, Perpendicular, 90 Degrees. 

Geometry Problem 1200
Square, Right Triangle, Perpendicular, 90 Degrees, Equal Areas. 

Geometry Problem 1199
Equilateral Triangle, Square, Altitude, Circle, Incircle, Inradius, Metric Relations. 

Geometry Problem 1198
Right Triangle, Square, Rectangle, Quadrilateral, Altitude, Equal Areas. 

Geometry Problem 1197
Four Squares, Four Triangles, Equal Areas. 

Geometry Problem 1186
Right Triangle, Square, Inscribed Circle, Tangent, Quadrilateral, Area. 

Geometry Problem 1184
Right Triangle, Square, Inscribed Circle, Tangent, Concurrent Lines. 

Geometry Problem 1160.
Triangle, Three Squares, Area, Equivalent Triangles. 

Geometry Problem 1124.
Triangle, Median, Two Squares, Area. 

Geometry Problem
1111.
Right Triangle, External Squares, Cathetus, Angle Bisector, Area, Geometric Mean. 

Geometry Problem
1110.
Right Triangle, External Squares, Catheti, Cathetus, Angle Bisector, 45 Degree, Internal Square. 

Geometry Problem
1109.
Right Triangle, External Squares, Catheti, Cathetus, 45 Degree, Angle. 

Geometry Problem
1108.
Right Triangle, External Squares, Catheti, Congruence, Harmonic Mean. 

Geometry Problem
1004.
Triangle with Squares, Perpendicular Bisectors, Concurrent Lines. 

Static Diagram of problem 902
Dynamic Geometry Problem
902
Triangle, Four Squares, Center, Concurrent Lines.
GeoGebra, HTML5 Animation for Tablets


Geometry Problem
608
Square with Right Triangles, Metric Relations, Congruence, Measurement. 

Geoboard
for iPad Pythagorean Theorem Proof, Squares (Problem 540). 

Problem
540.
Right Triangle, Square, Parallel, Perpendicular, Dissection, Area, Pythagoras. 

Problem
539.
Right Triangle, Square, Parallel, Perpendicular, Dissection, Area, Pythagoras. 

Problem
534.
Right Triangle, Squares, Perpendicular, Dissection, Areas. 

Problem 521.
Triangle with three Squares, Altitude, Rectangle, Area. 

Problem 520.
Triangle with six Squares, Ratio, Area. 

Problem 519.
Triangle, Squares, Altitude, Perpendicular, Rectangle, Area. 

Problem 518.
Parallelogram, Five Squares, Centers, 45 Degrees, Measure. 

Problem 517.
Right Triangle, Six Squares, Areas. 

Problem 514.
Triangle, Five Squares, Line, Area. 

Problem 512.
Triangle with three squares and concurrency. 

Problem 510.
Triangle, Three Squares, Midpoints, Concurrency. 

Problem 508.
Triangle with three Squares, Four triangle of equal Area. 

Problem 506.
Triangle with Three Squares, Center, Midpoint, Perpendicular. 

Problem 503.
Triangle with Three Squares, Perpendicular, Congruence, Concurrency. 

Problem 502.
Triangle, Two Squares, Midpoint, Perpendicular, Half the measure. 

Problem 501.
Triangle, Two Squares, Center, Midpoint, another Square. 

Problem 499.
Triangle, Two Squares, Perpendicular. 

Problem 497.
Triangle, Two Squares, Centers, Midpoint, 90 Degrees. 

Problem 496.
Triangle, Two Squares, 90 Degrees, Concurrency, Angle Bisectors. 

Problem 491.
Square, Right Triangle, Incircle, Inscribed Circle, Radius. 

Problem 485.
Square, Side, Circles, Tangent, Radius, Measurement. 

Problem 484.
Square, Angle, 90 degrees, Triangle, Measurement, Proportion. 

Problem 483.
Square, Angle, 90 degrees, Measurement. 

Proposed
Problem 459.
Right triangle, Squares, Distance, Measurement. 

Proposed
Problem 458.
Square, Semicircle, Circular Sector, Internal Common Tangent, Measurement. 

Proposed
Problem 370.
Triangle with squares, Circumcircles, Tangent circles. 

Proposed
Problem 367.
Square, Angle, 45 degrees, Pythagoras, Congruence, Similarity. 

Proposed
Problem 357.
Square, Exterior point, Triangles, Area. 

Proposed
Problem 356.
Square, Point inside, Triangles, Area. 

Proposed
Problem 354.
Rhombus, Square, 45 degrees. 

Proposed Problem
336.
Two equal circles, a Common Tangent and a Square. 

Proposed Problem
331.
Square, Point on the Inscribed Circle, Tangency Points. 

Proposed Problem
322.
Square, Inscribed circle, Tangent, Triangle area. 

Proposed Problem
317.
Right triangle and Inscribed Squares. 

Proposed Problem
316.
Circular segments and Inscribed Squares. 
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Email Last updated:
Nov 17, 2019
