\(A = \pi r^{2}\) is the equation used for determining area from radius. We're given diameter, so to get the radius simply divide by 2. 19/2 = 9.5.
\(A = (3.14)(9.5)^{2}\), when solved, equals \(283.385 m^(2)\). After rounding to the nearest tenth, we get \(283.4 m^{2}\)
