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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.

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Verified by Experts

The correct Answer is:
`44000 cm^(2)`
Given, `r = 2.5 cm and h = 2800 cm`
Total radiating surface area `= (2pi rh) cm^(2)`
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RS AGGARWAL-VOLUME AND SURFACE AREA OF SOLIDS-Exercise 15B
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