Answer:
8π
Step-by-step explanation:
General formula for area of a circle:
[tex]\pi {r}^{2} [/tex]
the question asks for half of a coracle, namely, a semicircle. thus, we multiply the area of a full circle by half
[tex] \frac{1}{2} \times {4}^{2} \times \pi[/tex]
= 8π
