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mathematical formula for area of sphere. Surface area of a Sphere with radius r 4 p r2 Then cap area of hemisphere is half surface area of the sphere ie Cap Area or Curved surface area of the hemisphere 12 4 p r2 2 p r2 Flat surface area or base area of the hemisphere Area of the circle with same radius p r2. For this you will need the radius r pi p and the central angle th.
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A radius is the distance between the center and the surface. Find the surface area of a sphere whose radius is given as r 11 cm. S SS S1 S2 p2Rhr2 1 r2 2 where h is the height of the spherical segment R is the radius of the sphere r1 r2 are the radii of the bases of the segment S1 S2 are the areas of these bases.
A sphere is a solid bounded by a surface all points of which are equally distant a point within called center.
A sphere from Greek sfaῖra sphaira globe ball is a geometrical object in three-dimensional space that is the surface of a ball viz analogous to the circular objects in two dimensions where a circle circumscribes its disk. The surface area is half of a sphere. Which means that the formula for the surface area of the curved cylinder encasing the sphere can be re-written as. For this you will need the radius r pi p and the central angle th.
