Twelve friends want to share a pizza. One of the friends is very fussy and will not eat the centre of the pizza.
Is it possible to split a (circular) pizza into twelve identical pieces such that there is at least one piece which does not touch the centre?

Show answer & extension

If you enjoyed this puzzle, check out Sunday Afternoon Maths XXXIII,
puzzles about 2d shapes, or a random puzzle.


Show me a random puzzle
 Most recent collections 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2019