Question

Angle 1 and angle 2 are vertical angles. If the measure of angle 1 is 87°. What is the measure of angle 2?

Answer 1

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.

Answer 2

87 deg

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.