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 2025

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2026