Use an appropriate area formula to find the area of the triangle with the given side lengths. \[ \begin{array}{l} a=16 m \\ b=9 m \\ c=23 m \end{array} \] The area of the triangle is $\square \mathrm{m}^{2}$. (Round your answer to the nearest tenth.)

Step 1 ：Given the sides of the triangle as a = 16 m, b = 9 m, and c = 23 m.

Step 2 ：We can calculate the semi-perimeter of the triangle (s) using the formula s = (a + b + c) / 2. Substituting the given values, we get s = 24.0 m.

Step 3 ：We can then calculate the area of the triangle using Heron's formula, which states that the area is equal to the square root of [s(s - a)(s - b)(s - c)]. Substituting the given values and s = 24.0 m, we get the area = 53.7 m².

Step 4 ：Final Answer: The area of the triangle is \(\boxed{53.7 \, \text{m}^2}\).