Question

a cylindrical 3 metre height is open at the top the circumference of its base is 22 metre find the total surface area of the cylindrical​

Answer 1

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Answer 2

given,

h=3m

c=22m

Step-by-step explanation:

c=2×pie×r

22=2×22/7×r

22×7/22×2=r

therefore,

r=3.5metre

now we have radius of base and height

therefore,

total surface area of cylinder=2pie r(r+h)

therefore=2×22/7×3.5(3.5+3)

=143.sq.m.