Question

a cylindrical tube has an outer diameter of 2.5cm and andban ineer diameter of 1.5cm. if its length is 7cm.if it has to be anti rust coated on the outer side the inner side and the rims on both sides .what is the total surface area to be covered for this purpose.calculate the cost if the rate is ₹0.50 per cm².

Answer 1

Answer:₹47.14

Step-by-step explanation:

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Answer 2

Answer:

T.S.A: 94.29 cm^2

Cost: 47.15 rs

Step-by-step explanation:

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