Question

what do you notice about the angles on opposite sides of point h? they are supplementary. they have the same measure.

Explanation:

Looking at the angles around point \(H\), the angles on opposite sides (vertical angles) are \(51^{\circ}\) and \(51^{\circ}\), \(129^{\circ}\) and \(129^{\circ}\). Vertical angles are equal in measure. Supplementary angles add up to \(180^{\circ}\), but the question asks about angles on opposite sides (vertical angles), not adjacent angles.

Answer:

They have the same measure.