mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
↓ ☰ ↓
subscribe
Loading image...
Advent calendar 2018
2 December
All 2018 advent puzzles
~
More information
Today's number is the area of the largest dodecagon that it's possible to fit inside a circle with area \(\displaystyle\frac{172\pi}3\).
Show answer
Hide answer
The largest dodecagon will be regular. It's area will be
172
.
Tags:
shapes
,
circles
,
polygons
,
area
Archive
Show me a random puzzle
Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
polynomials
prime factors
taxicab geometry
algebra
decahedra
binary
angles
pentagons
geometric means
star numbers
graphs
multiples
books
triangles
arrows
triangle numbers
shape
dice
tangents
square roots
division
3d shapes
doubling
menace
odd numbers
coins
lines
dates
cubics
remainders
the only crossnumber
hexagons
logic
2d shapes
cube numbers
mean
ave
people maths
planes
even numbers
albgebra
expansions
perfect numbers
squares
circles
sequences
square grids
probability
cryptic crossnumbers
lists
percentages
palindromes
addition
bases
balancing
rectangles
crosswords
digits
proportion
probabilty
unit fractions
functions
sums
determinants
chalkdust crossnumber
square numbers
partitions
combinatorics
consecutive integers
sport
neighbours
means
complex numbers
shapes
integers
regular shapes
scales
axes
quadratics
rugby
elections
consecutive numbers
tiling
speed
ellipses
coordinates
geometric mean
polygons
median
sets
volume
folding tube maps
money
chocolate
spheres
routes
floors
integration
range
crossnumbers
products
cards
number
factors
powers
surds
digital products
indices
medians
tournaments
geometry
quadrilaterals
games
digital clocks
trigonometry
irreducible numbers
colouring
cryptic clues
dominos
grids
averages
prime numbers
sum to infinity
chess
fractions
pascal's triangle
perimeter
gerrymandering
advent
matrices
differentiation
multiplication
multiplaction squares
area
dodecagons
calculus
parabolas
symmetry
numbers
christmas
xor
wordplay
clocks
factorials
time
Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
crossnumbers
geometric means
products
colouring
triangle numbers
3d shapes
grids
proportion
digital clocks
trigonometry
arrows
speed
dominos
consecutive integers
ellipses
tournaments
median
angles
multiplication
gerrymandering
the only crossnumber
cube numbers
dates
routes
sets
dodecagons
chocolate
hexagons
addition
shapes
prime factors
planes
number
cubics
regular shapes
bases
coins
balancing
cards
christmas
square roots
unit fractions
geometric mean
perimeter
range
tiling
combinatorics
star numbers
dice
cryptic crossnumbers
matrices
pascal's triangle
algebra
even numbers
sum to infinity
triangles
pentagons
geometry
lists
powers
shape
scales
squares
integration
crosswords
decahedra
palindromes
numbers
differentiation
volume
coordinates
factors
multiples
folding tube maps
cryptic clues
calculus
parabolas
spheres
doubling
square numbers
menace
irreducible numbers
advent
indices
odd numbers
functions
expansions
polynomials
games
elections
symmetry
axes
logic
determinants
remainders
consecutive numbers
circles
medians
digits
taxicab geometry
fractions
partitions
money
prime numbers
square grids
probabilty
means
wordplay
albgebra
clocks
probability
polygons
complex numbers
digital products
xor
ave
time
neighbours
surds
sport
quadratics
division
quadrilaterals
sequences
percentages
binary
perfect numbers
graphs
floors
rugby
area
lines
factorials
averages
sums
chess
mean
rectangles
chalkdust crossnumber
tangents
2d shapes
people maths
integers
books
multiplaction squares
© Matthew Scroggs 2012–2026