Question

find the missing side length. assume that all intersecting sides meet at right angles. include the correct unit in your answer.

Explanation:

Step1: Identify vertical side relationship

The total vertical length of the right side equals the sum of the shorter vertical segment and the missing side.

Step2: Calculate missing side length

Subtract the shorter vertical segment from the total vertical length.
$\text{Missing length} = 12\ \text{cm} - 8\ \text{cm} = 4\ \text{cm}$

Answer:

4 cm