Question

The surface area of a solid hemisphere is 432πcm3 . calculate it's radius.​

Answer 1

Answer:

The answer is 12 cm

Step-by-step explanation:

Surface area of solid hemisphere=3πr^2

Given surface area= 432πcm^2

3πr^2=432π

r^2=432π/3π

r^2=144

r=12cm

Answer 2

Correct Question:

The surface area of a solid hemisphere is 432 π cm². Calculate it's radius.

Answer:

The radius of a solid hemisphere = 12 cm

Step-by-step explanation:

Given:

• Surface area of a solid hemisphere = 432πcm².

To find:

• The radius of a solid hemisphere.

Solution:

As we are already provided with the surface area of hemisphere, so here, we simply use formula of surface area of a hemisphere to find out the radius of a solid hemisphere. Putting the values in the formula and then doing the required calculations, we can easily calculate the radius of a solid hemisphere.

Let's find out...

✰ Surface area of hemisphere = 3πr²

Where,

r is the radius of a hemisphere.

Putting the values in the formula, we have:

• 432 π = 3πr²

π gets cancel on both the sides, we get:

• 432 = 3 × r²
• r² = 432/3
• r² = 144
• r = √144
• r = 12 cm

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