The surface area of a sphere with a radius of 7cm is about 615.8cm2
The surface area is 804.25 cm2
Oh, dude, you just need to find the radius first, which is half of the diameter, so that's 9 cm. Then you use the formula for the surface area of a sphere, which is 4πr^2. Plug in 9 for r, square it, multiply by 4, and then multiply by π. That gives you a surface area of 1017π square cm, or about 3190 square cm. Easy peasy!
Oh, dude, you're hitting me with some math here. So, the formula for the surface area of a sphere is 4πr², where r is the radius. Since the diameter is 18 cm, the radius is half of that, which is 9 cm. Plug that into the formula, and you get a surface area of 1017π cm². But like, who's really gonna measure that in real life, am I right?
Surface area = 4*pi*72 = 615.752 square cm to 3 decimal places
The answer is 36π or approximately 113.1 cm.
The surface area of a sphere if its diameter is 9.65 cm equals 292.6cm2
The surface area of a sphere with a radius of 7cm is about 615.8cm2
The surface area of a sphere with a diameter of 7cm is 153.9cm2
18 CM
Surface area of sphere: 4*pi*7^2 = 196*pi square cm
Oh, dude, you just need to find the radius first, which is half of the diameter, so that's 9 cm. Then you use the formula for the surface area of a sphere, which is 4πr^2. Plug in 9 for r, square it, multiply by 4, and then multiply by π. That gives you a surface area of 1017π square cm, or about 3190 square cm. Easy peasy!
314.28571 cm.
Surface area of a sphere (the golfball) = 4*pi*radius2 square cm
The surface area is 804.25 cm2
Surface area = 4*pi*32 = 36pi square cm
Surface area = 4*pi*142 = 784pi square cm