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 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021