university of waterloo centre for education in faculty of mathematics mathematics and computing grade 7 8 math circles february 15th 2012 ancient geometric constructions the ancient greek mathematician euclid is ...
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...University of waterloo centre for education in faculty mathematics and computing grade math circles february th ancient geometric constructions the greek mathematician euclid is acknowledged inventor area mathemat ics known as geometry these construction techniques drawing shapes using simply a compass straight edge are used extensively his book elements which regarded ultimate reference even today purest form without numbers you ll be sur prised at what can do why did they use no back then it was because that number system we have to day such fractions decimals almighty zero didn t exist had only whole so there way represent say note this lesson must not measurement on ruler measure length anything should just guide help draw lines remember greeks centimeters inches instructions with markings i allows arcs case whose helps line between two points allow make allowed connect any circle centered point going through b mark intersection objects more than above sure know perpendicular paral...