Question

what is the special name for these angles combined? what is the value of the missing angle? supplementary, 40 degrees supplementary, 50 degrees complementary, 50 degrees complementary, 40 degrees multiple choice 5 points

Explanation:

Step1: Identify angle - type relationship

The two angles are supplementary as they form a linear - pair (sum to 180°).

Step2: Calculate the missing angle

Let the missing angle be \(a\). We know that \(140^{\circ}+a = 180^{\circ}\). So, \(a=180^{\circ}-140^{\circ}\).
\(a = 40^{\circ}\)

Answer:

Supplementary, 40 degrees