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Advent calendar 2018
2 December
All 2018 advent puzzles
~
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Today's number is the area of the largest dodecagon that it's possible to fit inside a circle with area \(\displaystyle\frac{172\pi}3\).
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The largest dodecagon will be regular. It's area will be
172
.
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area
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sets
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volume
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irreducible numbers
cubics
people maths
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perimeter
colouring
planes
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taxicab geometry
combinatorics
shape
folding tube maps
books
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angles
ave
christmas
averages
factorials
numbers
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3d shapes
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surds
time
odd numbers
dates
triangle numbers
polynomials
even numbers
crossnumbers
partitions
quadratics
median
ellipses
chocolate
binary
square numbers
parabolas
sport
unit fractions
squares
gerrymandering
chess
cube numbers
determinants
complex numbers
cryptic crossnumbers
scales
advent
perfect numbers
digits
sums
tiling
multiplaction squares
products
medians
trigonometry
geometry
pascal's triangle
arrows
proportion
decahedra
coordinates
consecutive numbers
speed
doubling
menace
logic
algebra
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dice
graphs
pentagons
integers
balancing
shapes
digital products
sum to infinity
multiplication
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xor
range
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spheres
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