Question

the curved surface area of a. cylinder. of height 28 cm is 352 square. cm find the diameter of the. base of cylinder and total surface area of cylinder

Answer 1

CSA= 352 sq.cm
2πrh=352
2×22÷7×r×28=352
44×4r=352
4r=352×44
4r=8
r=2cm
the diameter of the base of the cylinder is 4cm.
TSA=2πr(h+r)
=2×π×2(30)
=120π sq.cm
the total surface area of cylinder is 120π cm sq.


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