What is the surface area of a rectangle that is 30'6" tall and 6 feet wide?

To find the surface area of a rectangle, you multiply its height by its width. In this case, the height is given as 30 feet 6 inches. To perform the calculation conveniently, it's best to convert the height entirely into feet. There are 12 inches in a foot, so 6 inches is 0.5 feet. Therefore, the total height in feet is 30 + 0.5 = 30.5 feet.

Now, the width is straightforward, as it is already given as 6 feet.

To calculate the surface area, multiply the height by the width:

Surface Area = Height × Width

Surface Area = 30.5 feet × 6 feet = 183 square feet.

Thus, the correct answer reflects that calculation, confirming that the surface area of the rectangle is indeed 183 ft².