Dynamic proofs

Author:
Irena Štrausová

  • Area of Trapezoid - Midsegment

    Area of Trapezoid - Midsegment

  • Area of Trapezoid - Triangles

    Area of Trapezoid - Triangles

  • Law of Sines - Acute Angle

    Law of Sines - Acute Angle

  • Law of Sines - Obtuse Angle

    Law of Sines - Obtuse Angle

  • Euclid’s theorem of leg

    Euclid’s theorem of leg

  • Euclid’s theorem of altitude

    Euclid’s theorem of altitude

  • Proof of Pythagoras' theorem (Henry Perigal)

    Proof of Pythagoras' theorem (Henry Perigal)

  • Euler's formula for polyhedra

    Euler's formula for polyhedra

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Area of Trapezoid - Midsegment

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