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Advent calendar 2015
5 December
All 2015 advent puzzles
~
More information
How many different triangles are there with a perimeter of 100 and each side having an integer length?
(different = not rotations or reflections)
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208
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triangles
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2d shapes
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ave
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wordplay
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the only crossnumber
volume
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number
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area
sport
palindromes
rugby
regular shapes
range
sets
functions
time
polynomials
cube numbers
polygons
squares
digits
integration
geometry
dates
unit fractions
means
chess
colouring
planes
multiplaction squares
dodecagons
ellipses
rectangles
multiples
spheres
xor
averages
neighbours
arrows
graphs
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decahedra
proportion
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