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