# CBSE Class 9 Answered

**Find the lateral surface area (curved surface area) of a hollow cylinder open at the ends of length is 14 cm, the external diameter is 10 cm and the thickness is 2 cm.**

Asked by Topperlearning User | 12 Oct, 2017, 08:11: AM

Expert Answer

Given: length (h) = 14 cm

External Diameter = 10 cm ** **

External Radius(R) = 5 cm,

Internal radius (r) = 5 - 2 = 3 cm

Let S be the lateral Surface area (LSA) of the hollow cylinder.

Answered by | 12 Oct, 2017, 10:11: AM

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