Question

the area of base of a cylinder IS 308 m^2 and its volume is 1540 metre cube find the circumference of the base and curved surface area
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Answer 1

Explanation:

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Answer 2

Explanation:

Given that:-

Base area of cylinder=308m^2

And its volume is 1540m^3.

To find :-its circumference of the base and curved curved surface area.

Solution:-

Area of Circle=>πr^2

308=>πr^2

r^2=>308×7/22

r^2=>14×7

r^2=2×7×7

r=7×√2

r=7√2

Volume of cylinder=πr^2h

πr^2h=1540

As we know the value of πr^2=308(We concluded above )

Now,308×h=1540

h=1540/308

h=>5cm

Circumference=2πr

=>2×22/7×7√2.

=>44/7×7√2

=>44√2

Circumference=44√2

C.S.A of cylinder =2πrh

=>44√2×5[putting circumference here 2πr=>44√2]

C.S.A=>220√2.

Required Answer=>C.S.A=>220√2m ^2.

Thanks.