Solve Equations with Supplementary Angles Quick Check 3 of 53 of 5 Items Question Use facts about supplementary angles to solve the following problem. Two angles are supplementary and have measures m∠ABC=15° and m∠CBD=x° . What is the value of m∠CBD ?(1 point) Responses 75° 75 degrees 15° 15 degrees 180° 180 degrees 165° 165 degrees
Since ∠ABC and ∠CBD are supplementary angles, their measures add up to 180°. Therefore, 15° + x° = 180°. Solving for x, we get x° = 165°. So, the value of ∠CBD is 165 degrees.
