Given:
Radius of the sphere = 10 in
To find:
The surface area of a sphere
Solution:
Surface area of sphere:
[tex]SA =4\pi r^2[/tex]
[tex]SA =4\times \pi \times 10^2[/tex]
[tex]SA=\pi \times 400[/tex]
[tex]SA=400\pi[/tex] in²
The surface area of a sphere is 400π in².
