Find the area of the triangle. Use the formula sheet provided.

9in, 7in in the inside of the triangle, 13in, 18in.

40 inches squared
40 inches squared

63 inches squared
63 inches squared

126 inches squared
126 inches squared

47 inches squared

To find the area of a triangle, we will use the formula:

Area = (1/2) * base * height

In this case, we don't have the height of the triangle, but we can find it using the Pythagorean theorem. We can consider the sides 9in and 7in to be the base and the height respectively. So, the height of the triangle can be found using the Pythagorean theorem:

height^2 + 4^2 = 9^2
height^2 + 16 = 81
height^2 = 65
height ≈ 8.06in

Now, we can calculate the area of the triangle:

Area = (1/2) * 9 * 8.06
Area ≈ 36.27in squared

Therefore, the closest option is 40 inches squared.