Two angles are supplementary. They have the following measures: m∠ACB=x° and m∠BCD=26° . What is the measure of ∠ACB ?(1 point)
The measure of ∠ACB can be found by subtracting the measure of ∠BCD from 180°, as supplementary angles add up to 180°.
∠ACB = 180° - ∠BCD
∠ACB = 180° - 26°
∠ACB = 154°
Therefore, the measure of ∠ACB is 154°.