Vocabulary
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Angle Relationships
Angle Relationships Part 2
Angle Relationships Part 3
100

What is a transversal

Any line that intersects two or more parallel lines.

100
Parallel lines
Straight lines that never intersect
100

Two angles are congruent. The measure of the first angles is 42 degrees, what is the measure of the second angle

42 degrees

100

On a transversal, a pair of adjacent angles formed on a straight line that add up 180

linear pair or supplementary

100

If a transversal cuts two parallel lines, how many angles are formed?

8 angles


200
What are supplementary angles?
Two angles whose measures add up to 180 degrees
200
Complementary Angles
Two angles whose measures add up to 90
200

What is the relationship between angles 2 and 3 ?

Vertical Angles

200

Angles that are the same size are congruent or similar?

Congruent Angles 

200

What is the first step in identifying if I have the right angle measurement?

Answers may vary: Asking oneself is my angle BIG (more than 90degrees) or small (less than 90 degrees)? 

300

What are Corresponding Angles?

When 2 parallel lines are both intersected by a transversal, these angles occupy the same position on the top and bottom parallel lines.

300

Linear Pair Angles

A pair of adjacent angles formed by intersecting lines. These angles are also supplementary (180 degrees).

300

If the measure of angle 4 is 112, what is the measure of angle 6? 

68 degrees (same-side interior angles)

300

Given two congruent angles, if one angle is 75 what is the measure of the other angle?

75

300

If the measure of angle 1 is 4x-6 and the measure of angle 5 is 122, what is the value of x?

32 

400
What are vertical angles?
Congruent angles formed by two intersecting lines. These angles are located across from each other.
400
Alternate Exterior Angles
If two parallel lines are intersected by a transversal, these angles are located on the outside of the two parallel lines on opposite sides of the transversal.
400

What is the relationship between angles 5 and 8?

Vertical Angles or Supplementry (180 degrees).

400

If the measure of angle 2 is 30 degrees , what is the measure of angle 6?

Also, 30.

400

if the measure of 2 vertical angles are 75 and 7=3x, what is the value of x?

Angle H=105; and 3x=75 x=25

500

What are Alternate Interior Angles?

When 2 parallel lines are both intersected by a transversal these angles are inside of the two parallel lines and on opposite sides of the transversal.

500

Same-side interior angles 

If two parallel lines are cut by a transversal, these angles are on the inside of the two parallel lines and on the same side of the transversal.

500

If the measure of angle 2 is 37 degrees, what is the measure of angle 7? What is the angle relationship?

It is 37 and Alternate Exterior.

500

 

Given that "a || m", measure of angle 5 is 98°, then the measures of angles 3 and 4 are:

Angle 3 is 82 degrees and angle 4 is 98 degrees

500

If the measure of angle 4 is 5x+3 and the measure of angle 6 is 8x-5, then find the value of x.

 x=14 

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