mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

Sine

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

Archive

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

Tags

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

Archive

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