Unit 9

Question 1

Adjacent Angles

Answer 1

Two angles that share a vertex and one side but do not overlap.

Question 2

Vertical Angles

Answer 2

The congruent angles opposite of one another formed by intersecting lines.

Question 3

Complementary Angles

Answer 3

Two angles whose measures have a sum of 90°.

Question 4

Supplementary Angles

Answer 4

Two adjacent angles whose measures have a sum of 180°.

Question 5

Congruent

Answer 5

Same angle measurement.

Question 6

Transversal Line

Answer 6

A line that intersects two lines in the same plane at different points.

Question 7

Corresponding Angles

Answer 7

Angles in matching corners at different intersections

( Congruent ).

Question 8

Alternate Interior

Answer 8

Angles between the parallel lines and on opposite sides of the transversal ( Congruent ).

Question 9

Alternate Exterior

Answer 9

Angles outside the parallel lines and on opposite sides of the transversal ( Congruent ).

Question 10

Same-Side Interior Angles

Answer 10

Angles between the parallel lines and on he same side of the transversal ( Supplementary ).