To determine whether angles A and B are supplementary, we need to check if they add up to 180 degrees.
Given:
- \( m∠A = 98° \)
- \( m∠B = 88° \)
Now, let's add the two angles:
\( m∠A + m∠B = 98° + 88° = 186° \)
Since 186° is greater than 180°, angles A and B are not supplementary.
Therefore, the correct response is:
No, they do not add up to 180 degrees.