The formula for calculating the surface area of a sphere is 4πr², where r is the radius of the sphere. This formula represents the area covered by the curved surface of the sphere.
pi (r^2)
area of dish end
The formula for calculating the volume of a hexagonal prism is to take the area of the hexagon, then multiply it by the height of the prism.
The answer will depend on what information you have.
Volume = area X height
The formula is 1/2 (apothem) (perimeter)
Formula for calculating the area of a hemisphere... Area = (4 x pi x r2) / 2
The formula for calculating density is: Population density= Total population divided by total area. Simply, if you have a scientific calculator, do the population over area.
2,,r or ,,d 2x pi x radius or Pi x Diameter
area of trapezium=1/2{a+b}h
Its Area = pi * (radius ^2 - height^2)