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)

Question

75°
180°
15°
165°

Answer 1

m∠ABC + m∠CBD = 180°
15° + x° = 180°
x = 165°

Therefore, the value of m∠CBD is 165°.