The formula for calculating the surface area of a sphere is expressed as
Surface area = 4pi * radius^2
From the diagram,
diameter = 13.6
Radius = diameter/2 = 13.6/2 = 6.8
pi = 3.14
By substituting these values into the formula,
Surface area = 4 x 3.14 x 6.8^2
Surface area = 580.8
