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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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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
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List of all puzzles
Tags
geometric mean
tournaments
combinatorics
sequences
speed
sets
factorials
polynomials
rectangles
scales
chocolate
shape
quadratics
perimeter
addition
rugby
money
number
bases
coins
digital clocks
circles
square numbers
chess
chalkdust crossnumber
doubling
triangle numbers
factors
crossnumbers
clocks
decahedra
algebra
means
perfect numbers
cryptic crossnumbers
multiples
lines
unit fractions
angles
trigonometry
digital products
indices
dice
time
dates
the only crossnumber
crossnumber
complex numbers
consecutive numbers
menace
triangles
differentiation
christmas
games
geometric means
regular shapes
geometry
elections
proportion
symmetry
partitions
palindromes
determinants
planes
matrices
taxicab geometry
star numbers
arrows
quadrilaterals
probabilty
albgebra
hexagons
averages
cryptic clues
sum to infinity
functions
probability
crosswords
cards
irreducible numbers
odd numbers
shapes
digits
consecutive integers
integration
ave
even numbers
median
tangents
remainders
axes
3d shapes
dominos
dodecagons
floors
products
multiplication
advent
prime numbers
balancing
volume
polygons
squares
books
division
percentages
cube numbers
expansions
colouring
people maths
integers
parabolas
binary
graphs
logic
range
spheres
ellipses
surds
wordplay
routes
coordinates
folding tube maps
square roots
grids
fractions
tiling
numbers
area
sport
pentagons
calculus
2d shapes
cubics
pascal's triangle
sums
gerrymandering
mean
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