Angle Pairs & Algebra

Alternate interior angles are pairs of angles that are on opposite sides of a transversal and inside the two parallel lines. They are equal in measure.

t = 5

Vertical angles are angles that are opposite each other when two lines intersect. They are always equal in measure.

The sum of the angles formed by two perpendicular lines is 90 degrees.

Corresponding angles are pairs of angles that are in the same position on two parallel lines cut by a transversal. They are equal in measure.

x = 6

A transversal is a line that intersects two or more lines at different points.

Supplementary angles are two angles whose measures add up to 180 degrees.

y = 104

The vertical angle to angle 2 is angle 5.