Surface Area of a Sphere

How do you find the Surface Area of a Sphere and a HemisphereLet radius of sphere = r. ThenSurface area of a sphere = 4πr2Curved surface area of a hemisphere = 2πr2Total surface area of a hemisphere = 3πr2Volume of the sphere = …

SpheresSpheres are three-dimensional closed surfaces.A sphere is a set of points in three-dimensional space equidistant from a point called the center. The radius of the sphere is the distance from the center to the points on the sphere.…