mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2015

5 December

How many different triangles are there with a perimeter of 100 and each side having an integer length?
(different = not rotations or reflections)

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

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

Archive

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