Question

find the height of the cylinder whose LSA is 440cm square and circumference of its base is 44cm​

Answer 1

LSA of cylinder = 2πrh=440

circumference of base =44

circumference of base =2πr

2πr=44

πr=22---(1)

Now,

2πrh=440

from(1)

2×22×h=440

h=10cm

Answer 2

Answer:

L.S.A=440cm

Circumference of the cylinder=44 cm

Circumference =2×22/7×r

44cm=2×22/7×r

=)r=44×7/22×2=7 cm

As we know,LSA of cylinder =2×22/7×r×h

=)440cm=2×22/7×7×h

=)440/22×2=h

=)h=10 cm

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