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 2024

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2025