Question

for the following right triangle, find the side length x.

Explanation:

Step1: Apply Pythagorean theorem

$$x^{2}=12^{2}+16^{2}$$

Step2: Calculate squares

$$x^{2}=144 + 256$$

Step3: Sum the values

$$x^{2}=400$$

Step4: Take square root

$$x=\sqrt{400}$$

Answer:

20