Question

Volume and Total Surface Area of a hemisphere are numerically equal, then Radius of hemisphere is

Answer 1

Answer:

Volume and surface area of a solid hemisphere are numerically equal. What is the diameter of the hemisphere? Let the radius of the hemisphere be x units. Hence, the diameter of the hemisphere is equal to 9 units.

Answer 2

Answer:

Let the radius of the hemisphere be x units.

Volume of a hemisphere = Surface area of the hemisphere.

$= > \frac{2}{3} \pi r {}^{3} = 3\pi r {}^{2}$

$= > \frac{2}{3} \: r = 3$

$= > r \: = 92$

$= > d \: =9 \: units$

Hence , the diameter of the hemisphere is equal to 9 units