The area of a rectangle measuring 9 inches by 5 inches is how many square inches?

To determine the area of a rectangle, you multiply its length by its width. In this case, the rectangle measures 9 inches in length and 5 inches in width.

Calculating the area involves the following computation:

Area = Length × Width

Area = 9 inches × 5 inches

Area = 45 square inches

Thus, the area of the rectangle is 45 square inches. This understanding of calculating the area by using the product of length and width is a fundamental concept in geometry, particularly useful in various applications such as aviation maintenance, where precise measurements are critical.