Question

Give formula of :-

☆☆☆☆☆☆Hemisphere☆☆☆☆☆☆

☆Curved surface area of hemisphere

☆Total surface area of hemisphere

☆Volume of sphere

An formula for rememberance.
${l }^{2} = {r}^{2} + {h}^{2}$
​

Answer 1

Answer:

Curved Surface Area: The area of the outer surface of the hemisphere is called the curved surface area. From the surface area of a sphere, we can easily calculate the surface area of the hemisphere. The curved surface area of a hemisphere = 2πr2 square units.

Total surface area:Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

Volume of sphere:The formula for the volume of a sphere is V = 4/3 πr³. See the formula used in an example where we are given the diameter of the sphere.

HOPE MY ANSWER HELPS YOU..!!!

Answer 2

Answer:

Formula of hemisphere:-

V(sphere) = 4/3 * π * r³ . Therefore, the volume of a hemisphere formula is as follows: V = V(sphere)/2 , V = 2/3 * π * r³ .

Formula of curved surface area of Hemisphere:-

From the surface area of a sphere, we can easily calculate the surface area of the hemisphere. The curved surface area of a hemisphere = 2πr2 square units. We know that the base of the hemisphere is circular in shape, use the area of the circle.

Formula of total surface of hemisphere:-

The total surface area of a hemisphere = 3πr2 square units

The total surface area of a hemisphere = 3πr2 square units“r” is the radius of the hemisphere.

Formula of volume of sphere:-

V=4/3π³

r=Radius