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