Two angles are supplementary. They have the following measures: m∠ACB=x° and m∠BCD=26° . What is the measure of ∠ACB ?
Since the two angles are supplementary, their measures add up to 180 degrees. Let's denote the measure of ∠ACB as x°.
Therefore, x° + 26° = 180°.
To solve for x°, we subtract 26° from both sides of the equation:
x° + 26° - 26° = 180° - 26°.
This simplifies to:
x° = 154°.
Therefore, the measure of ∠ACB is 154°.