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Advent calendar 2016
2 December
All 2016 advent puzzles
~
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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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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
star numbers
angles
consecutive numbers
mean
quadratics
integration
integers
shapes
digits
geometry
quadrilaterals
polygons
numbers
tangents
scales
albgebra
games
tournaments
cube numbers
rectangles
division
determinants
matrices
surds
algebra
proportion
speed
averages
triangle numbers
sequences
percentages
dice
probability
floors
binary
books
factorials
addition
sets
fractions
partitions
unit fractions
sport
volume
grids
trigonometry
remainders
balancing
palindromes
calculus
2d shapes
routes
pascal's triangle
median
ellipses
number
elections
indices
multiples
square numbers
sums
dodecagons
people maths
menace
odd numbers
shape
coordinates
consecutive integers
expansions
christmas
rugby
time
crossnumber
crossnumbers
triangles
dates
cubics
multiplication
graphs
cryptic crossnumbers
logic
pentagons
digital clocks
colouring
range
symmetry
parabolas
coins
functions
money
taxicab geometry
cryptic clues
circles
chalkdust crossnumber
polynomials
tiling
digital products
squares
products
combinatorics
advent
arrows
prime numbers
axes
bases
perimeter
decahedra
folding tube maps
3d shapes
complex numbers
lines
clocks
doubling
factors
cards
gerrymandering
spheres
irreducible numbers
hexagons
the only crossnumber
perfect numbers
dominos
crosswords
means
planes
square roots
sum to infinity
differentiation
geometric means
geometric mean
wordplay
chocolate
even numbers
probabilty
ave
chess
regular shapes
area
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