the lateral surface area of a cylinder is 440 metre square and height is 28m.find diameter and total surface area
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2
Answer:
LSA of cylinder =2πrh
substituting the values given r=5/2m
therefore d=5m
TSA of cylinder = 2πr(r+h)
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Answered by
1
Answer:
L.S.A=440metersquare
hight(h)=28m
radius(r)=?
L.S.A of cylinder=2(pai)rh
440=2×22/7×r×28
r=440×7/2×22
r=220×7/2
r=110×7
r=770m
diameter=2r
=2×770
=1570m
total surface area of cylinder=2(pai)r(h+r)
=2×22/7×770(28+770)
=2×22×110×798
=44×87780
=3862320metersquare
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