Answer:
m<ABH = 18°
m<DEI = 55°
AB, DE
Explanation:
In each of the two first cases, the sum of the measures oft he adjacent angles must be 90° for the lines to be perpendicular.
m<ABH = 18°
m<DEI = 55°
Theorem: If two lines are perpendicular to the same line, the lines are parallel.
AB, DE