Angles

Vocab Part I

200

What is "m∠C" read as?

Measure of Angle C

340

A line that intersects two or more parallel lines.

Transversal

360

Two angles that add up to 180 degrees.

Supplementary Angles

490

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

Alternate Interior Angles

520

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

Same-Side Interior Angles

Vocab Part II

200

Two lines that never intersect.

Parallel Lines

340

Having the same measure (equal).

Congruent

360

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

Vertical Angles

490

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

Alternate Exterior Angles

520

Two congruent angles located in the same position, but on a different parallel line.

Corresponding Angles

Complementor Supplement

200

What is the supplement of 83^o?

97^o

340

What is the complement of 32^o?

58^o

360

What is the complement of 44.8^o?

45.2^o

490

What is the supplement of 39.2^o?

140.8^o

520

What is the supplement of h^o?

(180 - h)^o

Identify theAngle Relationship

200

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

Are they congruent, complementary, or supplementary?

Alternate Interior Angles, Congruent

340

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

Are they congruent, complementary, or supplementary?

Vertical Angles, Congruent

360

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

Are they congruent, complementary, or supplementary?

Alternate Exterior Angles, Congruent

490

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

Are they congruent, complementary, or supplementary?

Same Side Interior Angles, Supplementary

520

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

Are they congruent, complementary, or supplementary?

Corresponding Angles, Congruent

Equations +Angles

200

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

x = 25

340

Given lines m and n are parallel, m∠8 = 65^o, and m∠5 = x - 10.  Find x.

x = 75

360

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

m∠5 = 27^o

490

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

m∠3 = 80^o

520

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

m∠6 = 96^o