Question

The total surface area of a cylinder equals 785 sq. m. If its radius is 5 m, find the height of the cylinder.​

Answer 1

Step-by-step explanation:

total surface area = 2πr(r+h)= 785 sq.m

radius = 5m

785= 2×22/7×5(5+h)

(5+h)= 785×7/2×22×5

5+h = 1099/44

h= 24.9-5

h= 19.9

Answer 2

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