The surface area of a solid spherical ball of diameter $12 \text{cm}$ is equal to

Concept: A sphere is indeed a solid shape with a curved surface. The surface area of a sphere can be defined as the total area covered by its outer surface.

Here, the diameter of the sphere $=12 \text{cm}$.

Then, the radius of the sphere will be $6 \text{cm}$.

We know that, surface area of the sphere is $4\pi r^2$.

$\Rightarrow 4\pi {\left(6\right)}^2$

$\Rightarrow 144\pi {\text{cm}}^2$

Hence, surface area of a solid spherical ball of diameter $12 \text{cm}$ is $144\pi {\text{cm}}^2$