Respuesta :
Answer:
87 deg
Step-by-step explanation:
Theorem:
Vertical angles are congruent.
If the angles are vertical angles, they are congruent.
Congruent angles have the same measure.
If <1 measures 87deg, then <2 also measures 87 deg.
Answer:
Step-by-step explanation:
Vertical angles are those opposite of each other where lines intersect. They are equal to each other. So the other angle is 87 as well.