Angle Relationships

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

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

Complementary angles are two angles whose measures add up to 90 degrees.

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

Adjacent angles share a common side and vertex, and they do not overlap.

The complementary angle is 60 degrees, since 30 + 60 = 90.

The supplementary angle is 60 degrees, since 120 + 60 = 180.

Vertical angles are formed by the intersection of two lines and are located opposite each other.

If two angles are both complementary to the same angle, they are supplementary to each other.

Yes, two angles can be adjacent and supplementary if they share a common side and their measures add up to 180 degrees.