the diagram shows the plan of a school running track. it contains of two straight sections, which are the opposite sides of a rectangle, and two semicircular sections, each of radius r m. the length of the track is 300m and it can be assumed to be very narrow.
a) show the internal area A m^2, is given by the formula A=300r - πr^2
b)find in terms of π the maximum value of the internal area?
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Last edited by hancyk; 06-03-2018 at 19:35.
- 06-03-2018 19:30
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- 09-03-2018 04:16
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