Question

The volume of a hemisphere is 2250 π cubic. cm. Find its total surface area.
(π= 3.14)​

Answer 1

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Answer 2

Given,

Volume of hemisphere = 2250π cm³

π = 3.14

To find,

The total surface area.

Solution,

We can simply solve this mathematical problem by using the following mathematical process.

Let the radius of the hemisphere = r cm

Volume = ⅔ × π × (r)³ cm³

According to the data mentioned in the question,

⅔ × π × (r)³ = 2250π

(r)³ = 2250π × 1/π × 3/2

(r)³ = 3375

r = 15

Total surface area= 3 × π × (15)² = 3 × 3.14 × (15)² = 2119.5 cm²

Hence, the total surface area will be 2119.5 cm².