I'm not sure if this is correct, can someone verify?

Answer:
Step-by-step explanation:
[tex]A=\frac{\pi (7.5^2)}{2}+\frac{15(20)}{2}\\ \\ A=\frac{56.25\pi +300}{2}\\ \\ A\approx 238.36m^2\\ \\ \text{You had the area equations correct but you didn’t compute them correctly.}[/tex]