1. In a hot water heating system, there is a cylindrical pipe of length 28 m and diameter
5 cm. Find the total radiating surface in the system.
2. Find
@ the lateral or curved surface area of a closed cylindrical petrol storage tank that is 4.2 m in diameter and 4.5 m high.
(i) how much steel was actually used, if of the steel actually used was wasted in 12 making the tank.
Solve these two Qs for me pls...
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