mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

Dodexagon

In the diagram, B, A, C, D, E, F, G, H, I, J, K and L are the vertices of a regular dodecagon and B, A, M, N, O and P are the vertices of a regular hexagon.
Show that A, M and E lie on a straight line.

Show answer & extension

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

Archive

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