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Advent calendar 2018
23 December
All 2018 advent puzzles
~
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Today's number is the area of the largest area rectangle with perimeter 46 and whose sides are all integer length.
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The largest rectangle will be 11 by 12 and have area
132
.
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geometry
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area
,
perimeter
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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
chocolate
2d shapes
clocks
sums
factors
cubics
tangents
ave
dates
decahedra
irreducible numbers
number
dodecagons
geometry
sets
consecutive integers
digits
algebra
dice
numbers
shapes
geometric means
mean
sum to infinity
pascal's triangle
speed
addition
cards
coins
triangle numbers
area
albgebra
multiples
hexagons
partitions
axes
products
coordinates
chalkdust crossnumber
symmetry
elections
polygons
remainders
ellipses
spheres
3d shapes
regular shapes
logic
means
square numbers
bases
colouring
books
triangles
averages
graphs
doubling
quadrilaterals
taxicab geometry
star numbers
differentiation
binary
money
cube numbers
sport
surds
range
digital clocks
parabolas
squares
quadratics
rectangles
calculus
unit fractions
integration
consecutive numbers
angles
tournaments
multiplication
proportion
balancing
cryptic clues
matrices
sequences
scales
christmas
complex numbers
fractions
lines
polynomials
people maths
wordplay
probabilty
shape
games
rugby
digital products
prime numbers
dominos
perfect numbers
the only crossnumber
circles
division
time
geometric mean
pentagons
crossnumber
functions
arrows
square roots
indices
cryptic crossnumbers
determinants
odd numbers
percentages
palindromes
factorials
folding tube maps
floors
probability
volume
chess
menace
integers
crosswords
grids
expansions
crossnumbers
advent
perimeter
tiling
gerrymandering
planes
even numbers
routes
median
trigonometry
combinatorics
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