Question

A rectangular sheet of dimensions 44 cm x 7 cm is rotated about its longer side. Find the volume and the total surface area of the solid thus generated.


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Answer 1

Volume = 1078 cm³

TSA = 616 cm²

Explanation is attached

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Answer 2

$Height = 7 cm$

$Circumference = 44 \: cm$

$Curved \: Surface \: Area \: \\ = 2 \: \pi \: r \: h$

$=2× 44 \times 7$

$= 616 \: {cm}^{2}$