Angle Pairs (Vertical, linear pair, adjacent, complementary & supplementary)

Vertical angles (Image)

Angles that are "opposite" of each other and are equivalent.

Vertical angles (Definition)

Angles that are across from one another when lines intersect

Congruent angles (Definition)

Angles which have the same measure

Supplementary angles (Definition)

Angles whose measures add to 180 degrees

Complementary angles (Definition)

Angles whose measures add to 90 degrees

Adjacent angles (Definition)

Coplanar angles which share a side and a vertex but do not share any interior points

Congruent. (they are =)

Relationship between vertical angles

15 degrees b/c 90-75=15

The measure of the complement of 75 degrees

105 degrees b/c 180-75=105

The measure of the supplement of 75 degrees

Adjacent complementary angles (Image)

angles that are "next to" each other.

linear pair

when two adjacent angles form a straight angle