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2 articles trouvés pour ce sujet.
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The inradius of an icosahedron |
2010-01-21 |
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fnavroth pose la question :
Suppose you have an equilateral triangle.
The area of the triangle is exactly 1200 square centimetres.
Now suppose you have twenty of those triangles.
It's possible to assemble those twenty triangles into a closed
three-dimensional shape, a regular polyhedron.
What would be the volume, in cubic centimetres, of the largest sphere
that could fit inside the shape?
Chris Fisher lui répond. |
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Finding the area of an isosceles triangle given one angle and the inradius |
2008-01-24 |
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Saurabh pose la question :
Given an isosceles Triangle, whose one angle is 120 and inradius is √3. So area of triangle is?
Stephen La Rocque lui répond. |
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