To determine if angles A and B are supplementary, we need to check if their measures add up to 180°.
Given:
- m∠A = 98°
- m∠B = 88°
Now, let's add the measures of the angles: m∠A + m∠B = 98° + 88° = 186°
Since 186° does not equal 180°, the angles are not supplementary.
The correct answer is:
C. No, they do not add up to 180°.