Surface area of a sphere = 4*pi*radius squared
To do this question, we have to ask ourself, what formula do you use to find the surface area of a sphere. The answer should be known to you, but it is 4πr2. Since we know how to find the surface area for a full sphere, then finding the surface for a half sphere is just half the job. You use the formula for the full sphere 4πr2, and divide it by 2... so (4πr2) / 2 . Voila!
The surface area of a sphere with diameter 78 and using 3.14 for Pi is about 19,103.76 units2
Use this formula (Ï€ = Pi): Surface area = 4Ï€r2
You divide the diameter by 2, to get the radius. Then you use the formula for the surface area of a sphere. Surface area of a sphere = 4*pi*radius^2
Use the formula: area = 4 pi radius2.
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.
To do this question, we have to ask ourself, what formula do you use to find the surface area of a sphere. The answer should be known to you, but it is 4πr2. Since we know how to find the surface area for a full sphere, then finding the surface for a half sphere is just half the job. You use the formula for the full sphere 4πr2, and divide it by 2... so (4πr2) / 2 . Voila!
The surface area of a sphere with diameter 78 and using 3.14 for Pi is about 19,103.76 units2
Use this formula (Ï€ = Pi): Surface area = 4Ï€r2
Use this formula: 4 x pi x radius2
You divide the diameter by 2, to get the radius. Then you use the formula for the surface area of a sphere. Surface area of a sphere = 4*pi*radius^2
circular calculations. circumference, area of circle, vol of sphere, surface area of sphere, etc.
To calculate the surface area of a sphere use the formula - 4pr2 r being the radius of the sphere. and 'p' being pi 3.14...
Use the formula: area = 4 pi radius2.
No, because the volume of a sphere = 4/3*pi*radius3 in cubic units But the surface area of a sphere = 4*pi*radius2 in square units
The earth is nearly a spherical object and its surface area = 4*pi*radius2
First divide the diameter by 2 to give the radius and use the formula:- Surface area of a sphere = 4*pi*radius2 measured in square units