Please help me with this.

Answer:
56.52 unit squared.
Step-by-step explanation:
First we know that the radius is equal to 6 thus the diameter would be 12. Now we know to find the whole area we can find the area of the full circle and divide by two. Now we do [tex]\pi r^{2}[/tex] / 2 to find the area of the semi circle. And doing the calculations, we would get 56.52 unit squared.
Equation: [tex]\frac{3.14 * 36}{2}[/tex]