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Surface area of a sphere = 4 x (pi) x (radius)2

Q: What is the formula to find the suface area of a sphere?

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How do you find the suface area of a net? Answer: Do the formula for each shape that is in the net.

4(pi)r^2 (4 * pi * r^2)

Surface area = 4*Pi*radius2

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!

Assuming the moon to be a sphere, the formula to find its surface area is 4/3*pi*r^3 where r is the radius of the moon.

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How do you find the suface area of a net? Answer: Do the formula for each shape that is in the net.

4(pi)r^2 (4 * pi * r^2)

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.

Just add the area of the six squares - that gives you 6a2, where a is the length of one side.

Surface area = 4*Pi*radius2

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!

Assuming the moon to be a sphere, the formula to find its surface area is 4/3*pi*r^3 where r is the radius of the moon.

Use this formula: 4 x pi x radius2

To find the surface area of a sphere, the formula is: 4pi*r2So plug in numbers: 4pi(4)24pi(16)=64pi

Use this formula (Ï€ = Pi): Surface area = 4Ï€r2

(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 area of a sphere is given by the formula A = 4πr² A sphere with radius r has an area = 4πr² A sphere with radius 2r has an area = 4π(2r)² = 4π.4r² = 16πr² The ratio of the larger sphere to the smaller = 16πr² : 4πr² = 4 : 1 If the area of the smaller sphere is 45 units then the area of the larger sphere is 45 x 4 = 180 units.