Cut-The-Knot-Action 8!

Author:Tim Brzezinski

Creation of this applet was inspired by a tweet from Alexander Bogomolny. How can you formally prove that the area of the orange triangle is less than or equal to

of the area of the ENTIRE TRIANGLE?

New Resources

רישום חופשי
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Let's fly!
Vector Valued Functions
Constructing the Copy of an Angle + Angles Activities

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trigonometry5
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RAPamplin_Parallelogram!
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Τριγωνομετρικός Κύκλος

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Calculus
Sphere
Logarithmic Functions
Standard Deviation
Function Graph