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An open cylindrical reservoir of internal diameter 42m and height 4m is constructed using reinforced concrete for walls and foundation. The walls are 1.4m thick while the foundation is laid to a depth of 2m
a)calculate to the nearest cubic metre
i)the volume of the concrete used to construct the reservoir
ii)the capacity of the reservoir
b)Starting with the full reservoir, water is consumed at the rate of 25 200 litres per day. Assuming that no more water is added, calculate the number
of days it take to use up all the water in the reservior