Question

Find the surface area of the sphere if radius = 9 m.​

Answer 1

Answer:

1018 m²

Step-by-step explanation:

surface area = 4× π× r²

                     = 4 × 3.142 × 9 × 9

                     = 1018.008   round it off

                     =1018 m²

Answer 2

Answer:

1017.36cm2

Step-by-step explanation:

surface area of sphere = 4πr2

= 4(3.14)(81)

= 324(3.14)

= 1017.36cm2

Hence,Surface area of sphere is 1017.36cm2