Question

find the length of the third side. if necessary, round to the nearest tenth.

Explanation:

Step1: Apply Pythagorean theorem

$$c=\sqrt{a^{2}+b^{2}}$$
Here, \(a = 16\), \(b = 18\).

Step2: Substitute values

$$c=\sqrt{16^{2}+18^{2}}=\sqrt{256 + 324}=\sqrt{580}$$

Step3: Calculate the square - root

$$\sqrt{580}\approx24.1$$

Answer:

\(24.1\)