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Advent calendar 2016
2 December
All 2016 advent puzzles
~
More information
What is the maximum number of lines that can be formed by the intersection of 30 planes?
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435
Tags:
lines
,
planes
,
geometry
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▼ show ▼
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Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
area
circles
wordplay
geometry
expansions
colouring
angles
crossnumbers
proportion
rectangles
calculus
numbers
probabilty
sum to infinity
menace
matrices
arrows
integration
perimeter
square roots
integers
even numbers
albgebra
scales
2d shapes
probability
parabolas
tiling
spheres
complex numbers
sequences
chocolate
cryptic crossnumbers
bases
regular shapes
surds
lines
means
chalkdust crossnumber
polynomials
speed
balancing
digital clocks
tangents
sport
elections
people maths
digital products
range
logic
quadrilaterals
binary
games
cards
pascal's triangle
coins
median
dice
money
cryptic clues
time
coordinates
sums
star numbers
clocks
dominos
hexagons
sets
advent
factorials
differentiation
functions
floors
division
grids
prime numbers
tournaments
averages
irreducible numbers
indices
shapes
factors
powers
percentages
square grids
palindromes
planes
triangles
fractions
multiples
geometric mean
cubics
numbers grids
volume
chess
ave
axes
quadratics
the only crossnumber
multiplication
combinatorics
odd numbers
partitions
remainders
square numbers
dodecagons
polygons
neighbours
squares
shape
graphs
doubling
geometric means
addition
taxicab geometry
unit fractions
3d shapes
pentagons
crosswords
trigonometry
symmetry
routes
gerrymandering
perfect numbers
decahedra
consecutive numbers
medians
folding tube maps
dates
determinants
cube numbers
algebra
rugby
mean
books
number
digits
consecutive integers
christmas
triangle numbers
products
ellipses
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