Teaser 2514
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Greg
Nov 28, 2010, 9:23:00 AM11/28/10
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Seems too trivial. A right angle triangle where the hypotonuse (outer
radius), and one side (inner radius) are an integer number of metres,
and the other side is half the (straight!) line length, i.e. 10
metres.
Pythagorus knew about right angle triangles 3:4:5, 5:12:13, and I did
before I hit my teens. 3:4:5 doesn't work, double the 5:12:13 ratio,
and an inner radius of 24 metres and an outer radius of 26 metres fits
just fine.
radius), and one side (inner radius) are an integer number of metres,
and the other side is half the (straight!) line length, i.e. 10
metres.
Pythagorus knew about right angle triangles 3:4:5, 5:12:13, and I did
before I hit my teens. 3:4:5 doesn't work, double the 5:12:13 ratio,
and an inner radius of 24 metres and an outer radius of 26 metres fits
just fine.
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