If base area of cylinder is 616cm square.find it's height if lsa is 15400cm square
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Answered by
1
base area of circle=πrsquare
616 =22/7×r square
616×7/22=r square
196=r square
r=14
tsa=2πr(r+h)
15400=2×22/7×14(14+h)
15400=22×4(14+h)
15400=88(14+h)
15400/88=14+h
175=14+h
h=175-14
h=161
hope it will work ......
Answered by
0
Answer:25 cm
Step-by-step explanation: lre r=radius
h=height of cylinder
Area of base =616sq cm
Base is circular
:.Area of base =πr2^
πr2^=616 sq cm
Total surface area of cylinder=πr^2h
:.πr^2h=15400
Bur πr^2=616sq cm
:.15400=.πr^2h
:.15400=616*h........because πr^2=616
15400/616=h
:.25=h
:.h =25 cm
:.The height of cylinder is 25cm
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