Question

Q.3. Define the surface area of a sphere of radius 'a'.​

Answer 1

${\mathtt{\huge{\red{\underline{Hey \: Mate \: !!}}}}}$

Therefore, the Surface Area of a Sphere with radius r equals 4πr2.♥

Answer 2

Answer:

Step-by-step explanation:

surface area = $\pi r^{2}$

Therfore, surface area of sphere of radius a = 22/7*a*a

                                                                          = 3.14$a^{2}$