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#sangaku — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #sangaku, aggregated by home.social.

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  1. Via mirangu.com (which I was surprised to learn was Dutch based) but I'm going to call it a Saturday #sangaku in spirit.

    A circle contains three squares and the orange space between them. What fraction is shaded?

    #geometry #MathPuzzle

  2. Via mirangu.com (which I was surprised to learn was Dutch based) but I'm going to call it a Saturday #sangaku in spirit.

    A circle contains three squares and the orange space between them. What fraction is shaded?

    #geometry #MathPuzzle

  3. A #sangaku for today

    In the figure, triangle ABC is a right angle isosceles triangle with angle A = 90 degrees, and square ACDE is a parallelogram. When AE = 5 cm, BE = 8 cm, how many cm^2 is the area of ​​pentagon ABCDE?

    Source: Sansu_seijin

    #mathpuzzle #geometry #recreationalmath