A sine curve can be created with five people by giving the following instructions to the five people:
A. Stand on the spot.
B. Walk around A in a circle, holding this string to keep you the same distance away.
C. Stay in line with B, staying on this line.
D. Walk in a straight line perpendicular to C's line.
E. Stay in line with C and D. E will trace the path of a sine curve as shown here:
What instructions could you give to five people to trace a cos(ine) curve?
What instructions could you give to five people to trace a tan(gent) curve?

Show answer & extension


Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020