Question

find the curved surface area of a closed cylindrical petrol storage tank that is 3.8 m in diameter and 4.9m high​

Answer 1

Answer:

d=3.8m(diameter)

r=3.8/2m(radius)

r=1.9m=19/10m

h=4.9m=49/10m(height)

curved surface area of cylinder

=2#rh(plz consider # as pie)

=2×22/7×19/10×49/10

=2×22×19×7/100

=5852/100

=58.52m²

Step-by-step explanation:

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Answer 2

Given :-

• Diameter = > 3.8 m so radius will be half of diameter. So radius is 1.9 m.

• Height of the tank is 4.9 m.

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To Find :-

• We have to find Curved Surface Area of Closed Cylindrical petrol storage tank.

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Formula Used Here :-

C.S.A of a Cylinder = > 2πrh

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Solution Start :-

$Curved \: Surface \: Area \: of \: Cylinder = > 2πrh \\ \\ Curved \: Surface \: Area = > 2 \times \frac{22}{7} \times 1.9 \times 4.9 \\ \\ Curved \: Surface \: Area = > 2 \times \frac{22}{\cancel {7}} \times 1.9 \times \cancel {4.9} \\ \\ Curved \: Surface \: Area = > 2 \times 22 \times 1.9 \times 0.7 \\ \\ Curved \: Surface \: Area = > 2 \times 22 \times 1.33 \\ \\ Curved \: Surface \: Area = > 58.52 \: {m}^{2}$

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• Therefore, Curved Surface Area of Closed Cylindrical petrol storage tank is 58.52 m².

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