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The figure shows a water tank which consists of a hemispherical part surmounted on top of a cylindrical part. The two part have the same diameter of 2.1 m and the cylindrical part is 1.5 m high as shown. All the surfaces of tank are made of iron sheet.
a) Allowing for a 15% wastage on overlapping, calculate to two decimal
place the area of iron sheet required.
b) Iron sheet cost sh 400 per square metre while labour and other materials amount to 50% of the cost of iron sheet. Find the cost of constructing the tank.
c) Calculate the capacity of the tank in litres.