Month: October 2012

Visualisation

The rise of megacities

The rise of megacities – interactive By 2025, the developing world, as we understand it now, will be home to 29 megacities. We explore the latest UN estimates and forecasts on the growth of these ‘cities on steroids’, and take a look at the challenges and opportunities megacities present for the tens of millions living in Lagos, Mexico City and Dhaka.  Source: The Guardian Continue reading The rise of megacities

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Algebra Quiz

Algebra Quiz 4

A farmer has an adjustable electric fence that is 100 metres long. He uses this fence to enclose a rectangular grazing area on three sides, the fourth side being a fixed hedge. Find the maximum area he can enclose. Problem taken from L Bostock and S Chandler, Stanley Thornes Publishers Ltd, 1980. Solution: PDF of the solution Xlsx file for calculating the area of polygons … Continue reading Algebra Quiz 4

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