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Problem 693: Square, Inscribed and Circumscribed Circle, Areas, Mind Map, Polya. Level: High School, College, Math Ed.

The figure shows a circumscribed circle about a square ABCD and the inscribed circle in the square ABCD. Prove that the area of the yellow shaded region is equal to the area of the blue shaded region.

Circle, Square, Area

Typography and Sketch of Problem 693: Nazca Lines: The Hummingbird in the background.

Typography and Sketch of Problem 1496: Sphinx and the Great Pyramid in the background


Geometric Art using Mobile Apps

Geometric art is a form of art based on the use and application of geometric figures. A geometric figure is any set or combination of points, lines, surfaces and solids.

A mobile app or mobile application software is a computer program designed to run on smartphones and tablet computers.
How to Solve It, Mind Map

George Pólya's 1945 book "How to Solve It, A new aspect of Mathematical Method", is a book describing methods of problem solving. It suggests the following steps when solving a mathematical problem: (1) First, you have to understand the problem. (2) After understanding, then make a plan. (3) Carry out the plan. (4) Look back on your work. How could it be better? 

College Geometry: Gergonne Point, Online Education



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