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9. 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. (ii) how much steel was actually used, if of the steel actually used was wasted in making the tank. fo lompshade It is to be

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Q1
Find the lateral curved surface area of a cylindrical petrol storage tank that is 4.2 m in diameter and 4.5 m high. How much steel was actually used, if 112 of steel actually used was wasted in making the closed tank?
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Q2
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Question 9
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