mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2015

21 December

This year, I posted instructions for making a dodecahedron and a stellated rhombicuboctahedron.
To get today's number, multiply the number of modules needed to make a dodecahedron by half the number of tube maps used to make a stellated rhombicuboctahedron.

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

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

Archive

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