Surface area of a sphere
1)In a Sphere | Sphere Radius = 85 | Calculate Sphere Surface Area = ?? 
  

2)In a Sphere | Sphere Radius = 49 | Calculate Sphere Surface Area = ?? 
  

3)In a Sphere | Sphere Radius = 19 | Calculate Sphere Surface Area = ?? 
  

4)What is the surface area of a sphere of radius 6 inches? 
  

5)What is the surface area of a sphere of diameter 42 cm? Use (22/7) as an approximation for π