Question

question
find the measure of the missing angle

Explanation:

Step1: Recall angle - sum property

The two angles are supplementary, meaning their sum is 180°. Let the missing angle be \(x\). So \(x + 140^{\circ}=180^{\circ}\).

Step2: Solve for \(x\)

Subtract 140° from both sides of the equation: \(x=180^{\circ}- 140^{\circ}\).

Answer:

\(40^{\circ}\)