Formula of surface area of sphere It's better to indicate the meaning of each letter!

Formula of surface area of sphere It's better to indicate the meaning of each letter!

1、 On the second floor is the formula for the volume of the sphere
V = (4 π / 3) R ^ 3, V sphere volume, R sphere radius, π: Pi
On the third floor is the formula of sphere area
S = 4 π R ^ 2: s sphere area, R sphere radius, π: Pi
What you want is the area of the ball. You should take the third floor

Calculation formula of partial sphere surface area
Calculation formula of partial surface area of sphere with radius of 278m (part with height of 7m and width of 44m)

If we add the base area = 2 Π RH + Πrr
=2∏×278×7＋∏×(44÷2）
=12289.96 (M2)
If only part of the surface area of the ball = 2 Π RH
=2∏×278×7
=1222.88 (M2)

Calculation formula of sphere surface area

Calculation formula of sphere
The formula for calculating the volume of a sphere with radius R is: v = (4 / 3) π R ^ 3 (4 / 3 times π times the radius to the third power)
V = (1 / 6) π d ^ 3 (one sixth times π times the third power of diameter)
The formula for calculating the surface area of a sphere with radius R is as follows: S = 4 π R ^ 2 (4 times π times r to the second power)