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 180° 180 degrees 75° 75 degrees 15° 15 degrees 165°
Since supplementary angles add up to 180 degrees, we can set up the equation:
m∠ABC + m∠CBD = 180
15 + x = 180
x = 165
Therefore, the value of m∠CBD is 165°.