Roel Mazure

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Roel Mazure
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Second problem from the bottom right corner on the Katayamahiko shrine. A circle of radius r inscribes three circles of radius t, the centers of which form an equilateral triangle of side 2t. Find t in terms of r.

Second problem from the bottom right corner on the Katayamahiko shrine. A circle of radius r inscribes three circles of radius t, the centers of which form an equilateral triangle of side Find t in terms of r.

Given: a 3-4-5 triangle and two mutually tangent circles甲,乙as indicated. Find: the radius of circles甲,乙. Solution: radius of circle甲=1.6. radius of circle乙=1.2

Given: a triangle and two mutually tangent circles甲,乙as indicated. Find: the radius of circles甲,乙. Solution: radius of radius of

handmade books

With e-books and e-readers springing up everywhere these days, the sight of a handmade book seems especially precious. UK-based artist Sarah Mitchell hand cuts, hand folds, hand stitches and hand finishes each book she creates.