30 circular plates, each of radius 14 cm and thickness 3 cm are placed one above
the another to form a cylindrical solid. Find
i) the total surface area.
ii). volume of the cylinder so formed.
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Answered by
2
Answer:
30 circular plates, each of radius 14 cm and thickness 3 cm are placed one above
the another to form a cylindrical solid. Find
i) the total surface area.
ii). volume of the cylinder so formed.
Answered by
6
Answer:
9152 cm^2 , 55440 cm^3
Step-by-step explanation:
(i) TSA = 2πr (r + h)
h = 30 * 3 = 90 cm
2 * 22/7 * 14 (14 + 90)
88 * 104
= 9152 cm^2
(ii) volume = πr^2h
22/7 * 14 * 14 * 90
44 * 14 * 90
55440 cm^3
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