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 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2019