math 521 #155 Four congruent right triangles and Five congruent circles (Pythagoras vs trigonometry)

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#matholympiad #triangles #pythagorastheorem #trigonometry

It is an interesting geometry question for beginners.

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A math problem will be solved and discussed on every TUESDAY. These problems are suitable for math enthusiasts, it helps in learning and sharpening skills in math Olympiad skill too.

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could it be easier to form the quadratic equation in r using the sum of the areas instead? The small square is (2r)^2 while area of each triangle is (0.5*1*r) +

MrXiangwei