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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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Advent calendar 2024
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List of all puzzles
Tags
axes
ave
wordplay
perfect numbers
geometry
planes
even numbers
bases
digital products
proportion
cryptic crossnumbers
hexagons
rugby
grids
sums
coins
cubics
polynomials
triangle numbers
geometric mean
graphs
routes
doubling
chocolate
folding tube maps
trigonometry
sum to infinity
dominos
range
dice
sets
square roots
cards
factorials
tiling
cube numbers
volume
menace
partitions
square grids
taxicab geometry
squares
sequences
pascal's triangle
averages
numbers
combinatorics
gerrymandering
fractions
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circles
angles
number
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mean
christmas
balancing
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books
odd numbers
area
star numbers
palindromes
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3d shapes
complex numbers
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decahedra
crossnumbers
algebra
colouring
logic
digital clocks
symmetry
multiplication
triangles
probabilty
shape
lines
coordinates
consecutive integers
chalkdust crossnumber
tournaments
speed
addition
cryptic clues
digits
tangents
percentages
prime numbers
pentagons
clocks
powers
elections
quadratics
integers
the only crossnumber
money
sport
factors
time
integration
irreducible numbers
rectangles
consecutive numbers
determinants
dates
division
expansions
geometric means
spheres
chess
people maths
functions
perimeter
unit fractions
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matrices
shapes
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surds
square numbers
ellipses
floors
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2d shapes
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