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