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Archimedes and Numerical Roots

The problem is how did Archimedes calculate the lengths of the sides of the polygons which needed him to be able to calculate square roots?

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More or Less?

Are these estimates of physical quantities accurate?

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Where Am I?

From the information you are asked to work out where the picture was taken. Is there too much information? How accurate can your answer be?

Time to Evolve

Age 14 to 16 Challenge Level:

Estimate lifespan and time to first offspring from those for the modern day equivalent creature.

Think about the point in the lifespan of a descendant at which the next descendant might have been produced.

Don't forget that this is an exercise in estimation and approximation: there is no 'right' answer, so try to put sensible guesses in the table.