the area of a circle is calculated by multiplying pi times the squared radius, and the diameter is equal to 2 radius, so we have that the diameter is 8 in, therefore half of it is equal to the radius, that is: radious = r = diameter/2 = 8/2 r = 4 in then we express the area equation: a = pi*r^2 a = (3.14)*(4)^2 where we have substituted pi = 3.14 and radious, r = 4 a = (3.14)*(16) a = 50.24 therefore the area is 50.24 squared inches
