Vocab Part I
Vocab Part II
Complement
or Supplement
Identify the
Angle Relationship
Equations +
Angles
100

Two angles that are next to each other, sharing a side and a vertex. 

Adjacent Angles

100

Having the same measure (equal).

Congruent

100

What is the complement of 32o?

58o

100

Given lines m and n are parallel, what is the relationship between ∠5 and ∠8?

Vertical Angles

100

True or False

If two angles are congruent, you can find the value of X by adding the measures of the two angles and setting the sum equal to 180 degrees.

False

200

A line that intersects two or more parallel lines.

Transversal

200

Two lines that never intersect.

Parallel Lines

200

What is the supplement of 83o?

97o

200

Given lines m and n are parallel, what is the relationship between ∠3 and ∠6?

Alternate Interior Angles

200

Given lines m and n are parallel, m∠2 = 125o, and m∠7 = 5x.  Find x.

x = 25

300

Two angles that add up to 180 degrees.

Supplementary Angles

300

A pair of opposite, congruent angles formed by two intersecting lines.

Vertical Angles

300

What is the complement of 44.8o?

45.2o

300

Given lines m and n are parallel, what is the relationship between ∠1 and ∠8?

Alternate Exterior Angles

300

Given lines m and n are parallel, m∠5 = 4x + 15, and m∠4 = 9x.  Find m∠5.

m∠5 = 27o

400

Two congruent angles on opposite sides of the transversal and inside the parallel lines.

Alternate Interior Angles

400

Two congruent angles on opposite sides of the transversal and outside the parallel lines.

Alternate Exterior Angles

400

What is the supplement of 39.2o?

140.8o

400

Given lines m and n are parallel, what is the relationship between ∠4 and ∠6?

Same Side Interior Angles

400

Given lines m and n are parallel, m∠3 = 2x + 40, and m∠7 = 3x + 20.  Find m∠3.

m∠3 = 80o

500

Two angles on same side of the transversal and inside the parallel lines.

Same-Side Interior Angles

500

Two congruent angles located in the same position, but on a different parallel line (1 inside and 1 outside the parallel lines).

Corresponding Angles

500

Two angles are supplementary. One angle is 12 degrees more than the other.

What is the measure of each angle?

96 degrees and 84 degrees

500

Given lines m and n are parallel, what is the relationship between ∠4 and ∠8?

Corresponding Angles

500

Given lines m and n are parallel, m∠4 = 5x + 44, and m∠6 = 6x + 48.  Find m∠6.

m∠6 = 96o