The total surface area of a solid cylinder is 165 cm square. If the base diameter is 7 cm, calculate its height.
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Answer:
Radius = diameter/2 = 7cm/2
TSA of cylinder=165cm²
=2πr(h+r)=165cm²
=2×(22/7)×(7/2)[h+(7/2)]=165
=22×[h+(7/2)]=165
=h+(7/2)=165/22
=h=165/22-(7/2)
=h=(165-77)/22
=h=88/22
=h=4cm
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