Download Line and Angle Relationships

Line and Angle Relationships
Vertical angles are opposite angles formed by intersecting line.
1 and
_______ are vertical angles.
1
4
2
2 and ________ are vertical angles.
3
Vertical angles are congruent.
The sum of the measures of complementary angles is _____________.
A
D
ABD and ________ are complementary angles.
50
40
B
C
The sum of the measures of supplementary angles is _____________.
1 and
_______ are supplementary angles.
1
4
2 and ________ are supplementary angles.
2
3
Lines that intersect at right angles are called ________________________ lines.
Two lines in a plane the never intersect or cross are called __________________lines.
A line that intersects two or more other lines is called a _________________.
Eight angles are formed that have special names. Four interior angles lie inside the
two lines, and four exterior angles lie outside the two lines.
1
3
2
5
6
4
7
8
Transversals and Angles
________________________ - interior angles that lie on opposite sides of the transversal
________________________ - exterior angles that lie on opposite sides of the transversal
________________________ - angles that are in the same position on the two lines in
relation to the transversal.
__________________________ - any two angles that are next to one another. The sum is ______
degrees.