mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

7 December

What is the area of the largest triangle that fits inside a regular hexagon with area 952?

Show answer

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 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024