Question 220208
From the descripton provided, the end-points of the diameter lie on a line that is parallel to the x-axis. The y-coordinates of the two end-points (92, 5) and (910, 5) are the same.
The length of the diameter (d) is {{{x[2]-x[1]}}} or {{{910-92 = 18}}}, so the area can be found from:
{{{A = pir^2}}} or {{{A = (pi)(d/2)^2}}} Substitute {{{d = 18}}}
{{{A = pi(18/2)^2}}}
{{{A = pi(81)}}}
The area is {{{highlight(81pi)}}}