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Math: Two triangles in a quarter circle
posted by dennisn on March 2nd, 2021 at 1:30AM
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five semicircles
posted by dennisn on March 17th, 2021 at 12:41AM

3 triangles in a semicircle
posted by dennisn on March 15th, 2021 at 6:41PM

red lengths
posted by dennisn on March 10th, 2021 at 6:10PM

red triangle
posted by dennisn on March 3rd, 2021 at 3:57PM