d = 2r
14.4 cm = 2r
r = 7.2 cm
We can substitute it into the formula for the surface area of a sphere to find the surface area (A).
A = 4πr^2
A = 4π(7.2 cm)^2
To calculate A, we can simplify the expression inside the parentheses first:
A = 4π(51.84 cm^2)
Next, we can multiply 4π by 51.84 cm^2:
A ≈ 205.7568 cm^2