ICSE Class 10 Answered
The internal and external radii of a hollow cylinder are 3 cm and 5 cm respectively. Hence its volume will be equal to _______cubic cm and its total surface area will be ________ square cm. *
Asked by bajialif786 | 29 Sep, 2020, 08:25: AM
Ler r1= 5 cm, r2 = 3 cm and h be the height
Volume of a hollow cylinder = pi(r12 - r22)h
Surface area of a hollow cylinder = 2pi(r1 + r2)(r2 - r1 + h)
Put r1, r2 and h in the formula to calculate volume and surface area
Answered by Renu Varma | 29 Sep, 2020, 10:40: AM
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