Question

find the height of a cylinder whose radius is 21 cm and total surface area is 3300 cm^2​

Answer 1

Answer:

Step-by-step explanation:

Total surface area of cylinder = πr²h

3300 = 22/7 ×21×21×h

h = 3300 × 7/ 22×21×21

h = 3300/22 × 21 × 3

h = 1100/22 × 21

h = 100/ 2 × 21

h = 50/21

h = 2.38cm

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