314.28571 cm.
Surface area = 4*pi*32 = 36pi square cm
The formula for the surface area of a sphere is 4 (pi) r2For a radius of 10 cm, the surface area is4 (3.1416) (10)2 = 4 (3.1416)(100) = about 1256.64 cm2
Surface area of sphere: 4*pi*15^2 = 900*pi square cm
The sphere's diameter is 3.921 cm
The surface area of a sphere with a radius of 7cm is about 615.8cm2
The surface area of a sphere with a radius of 42cm is about 22,167cm2
314.28571 cm.
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 of sphere: 4*pi*7^2 = 196*pi square cm
Surface area = 4*pi*32 = 36pi square cm
Surface area = 4*pi*142 = 784pi square cm
Surface Area = 4*pi*r2 = 6566.9 sq cm
The formula for the surface area of a sphere is 4 (pi) r2For a radius of 10 cm, the surface area is4 (3.1416) (10)2 = 4 (3.1416)(100) = about 1256.64 cm2
Surface area of sphere = 4*pi*122 = 1809.557368 or about 1810 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!
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?