$69^{\circ}$ 30. Calculate the area of a regular hexagon with side lengths 1 feet and an apothem of $3 \sqrt{10}$ feet. $9 \sqrt{10}$ square units $4 \sqrt{10}$ square units $7.5 \sqrt{10}$ square units not enough information

Step 1 ：Given a regular hexagon with side lengths 1 feet and an apothem of \(3 \sqrt{10}\) feet.

Step 2 ：The area of a regular hexagon can be calculated using the formula: Area = \(\frac{1}{2} \times \text{Perimeter} \times \text{Apothem}\).

Step 3 ：The perimeter of a regular hexagon with side length 1 is 6 (since a hexagon has 6 sides).

Step 4 ：Substitute these values into the formula to find the area.

Step 5 ：The area of the regular hexagon is approximately \(\boxed{28.46}\) square feet. However, this is not one of the options given in the question.