Find (i) volume and (ii) curved surface area of the right circular cylinder having given the radius of
circular base (r) and height (h)as:
a. r = 5 m, h = 4.9 m
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Radius = r = 5m
Height = 4.9m
Volume = πr²h
Volume = 22/7 * 25 * 4.9
Volume = 385m³
Curved Surface Area = CSA = 2πrh
CSA = 2πrh
CSA = 2 * 22/7 * 5 * 4.9
CSA = 154m²
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Answered by
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Answer:
Volume of cylinder is 385 m³ whereas Curved Surface Area of Cylinder is 154 m².
Step-by-step explanation:
(i) Volume of cylinder = πr² h
= 22/7 x 5 x 5 x 49/10 (by removing point 4.9=49/10 )
= 11 x 5 x 7 ( by cutting 49 by 7 ; 5 by 10 and 2 by 22.)
= 55 x 7
= 385 m³
(ii)Curved Surface Area = 2πrh
= 2 x 22/7 x 5 x 49/10 (by removing point 4.9=49/10 )
= 22 x 7 (by cutting 10 by 5; 2 by 2 and 49 by 7)
= 154 m²
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