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Euclid demos the earliest iPad…

April22

Yes, here it appears that Euclid (or a look alike) is showing off his new yellow iPad? Well before your iPhone and digital SLR the only way to capture events was to paint or sketch them. This is an extract from Raphael’s School of Athens painting and features the mathematician Euclid (famous for his Geometry and Trigonometry) or perhaps it is Archimedes? Whichever you decide it does give a glimpse of deep thought happening around Mathematics – and all in the marketplace. Outdoor Mathematics was more popular then than tennis or football!

Euclid (c. 325-265 B.C.) studied at Plato’s Academy in Athens, then later moved to Egypt [see map and pics] where he taught mathematics at the Alexandrian School during the reign of the first of the Macedonian rulers, Ptolemy I Soter. Macedonians ruled in Egypt following Alexander the Great‘s conquests.

 

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y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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