r is the radius of the sphere
Surface Area: S = 4Πr2
Volume: V = 4/3Πr3
Π=pi or 3.14
Use the formula for volume to solve for the radius of the sphere and then plug that radius into the formula for the surface area of a sphere.
Surface area = 2A + PdwhereA = area of the base shapeP = perimeter of base shaped = height of prismVolume = Ad
The formula for the surface area of a sphere is 4πr2. The formula for the volume of a sphere is 4/3πr3.
Given the surface area, where S=surface area, the formula for finding the volume isV = √(S / 4pi)
Impoved Answer:-Surface area of a sphere: 4*pi*radius squaredVolume of a sphere: 4/3*pi*radius cubed
You replace the radius in the formula, and do the calculations, to obtain either the volume or the area, depending on what formula you are talking about.
Volume of a sphere = 4/3*pi*radius3 Area of a circle = pi*radius2
The answer for the hemisphere is half the volume of a sphere, which is given by the formula (2/3)πr³, where r is the radius. The surface area of a hemisphere is half the surface area of a sphere, given by the formula 2πr².
(pi)R2 is the formula for the area of a circle. It won't help you find the volumeof a half sphere, at least not without some calculus.What you need is the formula for the volume of a sphere: V = 4/3 pi R3 .Do I have to explain that the volume of a half sphere is just half of that ?
The formula for the volume of a solid (not a sphere) is V=Bh, or the volume (V) equals the area of the base (B, or bh) multipied by the height of the solid (h).
The area of a sphere is equal to its circumference times its diameter.There are a variety of ways to work out this formula, most of them involving calculus.(See the links for the volume of a sphere).
What's more important is knowing the formulae for a sphere which are:- Volume of a sphere = 4/3*pi*radius3 Surface area of a sphere = 4*pi*radius2