Question

find the curved surface areaand the total surface area of a cylinder a diameter of whose base is 14 centimeter and height is 40 centimeter

Answer 1

✨${\pink{hello!!!}}$✨


Height=40cm

Diameter=14cm

Radius=14/2
=7cm

Curved surface area of cylinder=2πrh
=2×22/7×7×40
=44×40
✨${\boxed{\blue{CSA=1760cm^2}}}$✨

Total surface area=2πr(r+h)
=2×22/7×7(7+40)
=2×22(7+40)
=44(7+40)
=44×47
✨${\boxed{\green{TSA=2068cm^2}}}$✨


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