To find the total area of Oak Manor, you multiply its length by its width.
Given:
- Length = 3.8 miles
- Width = 4.2 miles
Total Area = Length × Width = 3.8 mi × 4.2 mi
Calculating that:
\[
3.8 \times 4.2 = 15.96 \text{ square miles}
\]
So the total area of Oak Manor is 15.96 mi².