Question

the total surface area of hemisphere is how much times the square of its radius? ​

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.

Answer 2

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