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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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Most recent collections
Advent calendar 2023
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List of all puzzles
Tags
percentages
regular shapes
balancing
pascal's triangle
cryptic clues
differentiation
factors
time
means
coins
shapes
expansions
rugby
chalkdust crossnumber
products
christmas
tournaments
dodecagons
digits
indices
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cards
dominos
prime numbers
sums
chocolate
even numbers
consecutive integers
albgebra
advent
3d shapes
books
hexagons
tiling
symmetry
proportion
polygons
cubics
colouring
division
gerrymandering
sum to infinity
algebra
ellipses
triangles
functions
complex numbers
money
speed
graphs
2d shapes
routes
range
people maths
coordinates
geometry
cube numbers
planes
partitions
unit fractions
logic
sets
dates
axes
digital products
ave
bases
arrows
mean
odd numbers
addition
scales
surds
median
sequences
pentagons
geometric means
angles
digital clocks
quadratics
volume
shape
circles
cryptic crossnumbers
spheres
tangents
integration
determinants
menace
chess
taxicab geometry
decahedra
polynomials
area
number
doubling
crosswords
trigonometry
lines
square roots
palindromes
the only crossnumber
quadrilaterals
multiplication
factorials
folding tube maps
matrices
crossnumber
clocks
calculus
grids
square numbers
binary
probabilty
geometric mean
rectangles
fractions
averages
star numbers
remainders
numbers
probability
games
parabolas
wordplay
multiples
consecutive numbers
crossnumbers
irreducible numbers
integers
squares
elections
perimeter
triangle numbers
sport
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