Mathematics

calculate the surface area of a sphere of radius 7cm [Take π = 22/7]

calculate the surface area of a sphere of radius 7cm [Take π = 22/7]

  • A.
    86cm2
  • B.
    154cm2
  • C.
    616cm2
  • D.
    1434cm2
  • E.
    4312cm2
Correct Answer: Option C
Explanation

Surface area of a sphere = (4pi r^2)

= (4 times frac{22}{7} times 7 times 7)

= (616 cm^2)