Question

calculate the surface area of the sphere whose radius is 7 cm​

Answer 1

Answer:

615.44cm^2

Step-by-step explanation:

radius= 7cm

surface area of a sphere= 4πr^2

= 4*3.14*(7)^2

= 4*3.14*49

=615.44cm^2

hope it helps you

Answer 2

❏ Question

calculate the surface area of the sphere whose radius is 7 cm ?

❏ Solution

Given:-

• Radius of sphere = 7cm

Find:-

• Surface area of Sphere .

Explanation

We Know,

★ Surface area of Sphere = 4πr²

➠ Surface area of Sphere = 4 × 22/7 × (7)²

➠ Surface area of Sphere = 4 × 22 × 7

➠ Surface area of Sphere = 4 × 154

➠ Surface area of Sphere = 616 cm². [ Ans]