How do you find the Surface Area of a Sphere and a HemisphereLet radius of sphere = r. ThenSurface area of a sphere = 4πr2 Curved surface area of a hemisphere = 2πr2 Total surface area of a hemisphere = 3πr2 Volume of the sphere = Volume of the hemisphere =Read More: Surface Area and Volume of a Cuboid Surface Area and Volume of a … [Read more...] about How do you find the Surface Area of a Sphere and a Hemisphere