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Demonstrations 41  60 of 161
A Generalization of Cross's Theorem
Representations of Trigonometric and Hyperbolic Functions in Terms of Sector Areas
Ratio of Areas in a Square
Generalized Pythagoras Theorem
Pool Circles
Minimum Area between a Semicircle and a Rectangle
Rotating Polygons
Differential Element dA
Approximate Area and Circumference of a Circle Using Isosceles Triangles
Coverage of a Unit Square by Random Discs
Fraction of a Circle Covered by Arcs of a Given Length
Soap Film between Two Equal and Parallel Rings
Signed and Unsigned Area under a Curve
The Medians of a Triangle Divide It into Three Smaller Triangles of Equal Area
Another Generalization of Pythagoras's Theorem
Area of Triangles Formed by Tangents on the Reciprocal Curve
The Triangles Formed by the Endpoints and Midpoints of Cevians
SideSplitting Triangle Ratios
Problems on Circles XIII: Common Area of Two Circles
Ratio of the Areas of a Circular Segment and a Curvilinear Triangle
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