A4 Luka painted a basketball court on his playground. The playing field consists of a rectangle and a semicircle as shown in the figure. The area of the playing field is:
(A) $80 \mathrm{~m}^{2}$
(B) $(80+8 \pi) \mathrm{m}^{2}$
(C) $(80+16 \pi) \mathrm{m}^{2}$
(D) $(80+64 \pi) \mathrm{m}^{2}$
(E) $244 \pi \mathrm{m}^{2}$

![](https://cdn.mathpix.com/cropped/2024_06_07_d6b556bd14f8001ca6fag-06.jpg?height=272&width=391&top_left_y=1800&top_left_x=1529)
A4. The playing field of the playground consists of a rectangle with an area of $80 \mathrm{~m}^{2}$ and a semicircle with an area of $\frac{\pi \cdot 4^{2}}{2}=8 \pi$. We add both areas and get the area of the playing field $(80+8 \pi) \mathrm{m}^{2}$.