Question

TSA of a hemisphere is equal to how many times the area of its base --

Answer 1

Answer:

The surface area of a hemisphere - Math Central If you have a hemispherical object then it has a base which is a circle of radius r. The area of a circle of radius r is π r2 and thus if the hemisphere is meant to include the base then the surface area is 2 π r2 + π r2 = 3 π r2. Hence in this case 3 π r2 = 1062.

Step-by-step explanation:

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Answer 2

$let \: the \: radius \: of \: the \: base \: of \: the \\ hemisphere \: be \: r \\ area \: of \: base = \pi {r}^{2} \\ tsa \: of \: hemisphere \: has \: 3 \: such \: \\ circles \\ therefore \\ \: tsa \: of \: hemisphere = 3\pi {r}^{2}$

$hence \: we \: can \: say \: that \: tsa \: of \\ hemisphere \: is \: equal \: to \: 3 \: times \: the \: area \\</p><p>\:of \: its \: base$

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