mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

2 December

Today's number is the area of the largest dodecagon that it's possible to fit inside a circle with area \(\displaystyle\frac{172\pi}3\).

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021