Question

the radius and the height of a cylinder are in ratio 3 ratio 14 if its volume is 44000 / 3 cm cube then find its total surface area​

Answer 1

r:h = 3:14

πr²h = 44000/3

πr²×14r/3 = 44000/3

14πr³ = 44000

r³ = 44000×7/14×22

r³ = 1000

r = 10cm
h = 140/3
TSA = 2πr(h+r) = 2×22/7×10×170/3 = 440×170/21 = 74800/21

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Answer 2

Answer:

r / h = 3/14

pi * r ^ 2 * h = 44000/3

Pi * r ^ 2 * 14 * r / 3 = 44000/3

14pi * r ^ 3 = 44000

r ^ 3 = 44000 * 7 / 14 * 22

r ^ 3 = 1000

r = 10cm

h = 140/3

TSA = 2πr(h+r) = 2x22/7×10×170/3 = 440x170/21 = 74800/21

please mark it as the brainliest answer