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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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List of all puzzles
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quadrilaterals
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indices
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scales
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tournaments
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folding tube maps
sums
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ave
gerrymandering
surds
books
integration
means
routes
square roots
sets
spheres
games
xor
graphs
expansions
products
rectangles
rugby
powers
determinants
probabilty
multiplaction squares
cards
3d shapes
squares
unit fractions
shape
time
menace
lists
circles
even numbers
bases
binary
consecutive numbers
elections
tangents
number
the only crossnumber
crosswords
partitions
dodecagons
functions
differentiation
calculus
tiling
irreducible numbers
division
arrows
sequences
doubling
wordplay
decahedra
digital clocks
medians
2d shapes
shapes
axes
geometry
taxicab geometry
albgebra
algebra
chalkdust crossnumber
speed
mean
factorials
neighbours
planes
addition
median
averages
colouring
odd numbers
people maths
crossnumbers
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coins
polygons
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geometric mean
regular shapes
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