Parallel lines & Angle Pairs

Corresponding angles

What is the relationship between x and y?

Alternate Exterior Angles

What is the relationship between x and y?

Alternate Interior Angles

What is the relationship between x and y?

same side interior angles

What is the relationship between x and y?

123°

What is the missing angle?

99°

What is the missing angle?

128°

What is the missing angle?

110°

What is the missing angle?

75°

What is the missing angle?

8

Solve for x

4

Solve for x

-2

Solve for x

-10

Solve for x

119°

What is the missing angle?

51°

What is the missing angle?

Vertical Angles

What is the relationship between a and b?

Complementary Angles

What is the relationship between a and b?

When you add two angles together they sum to 180°

What does supplementary mean?

When you add two angles together they sum to 90°

What does complementary mean?

Two angles that lie next to each other on a line. Thus these are adjacent angles that always sum to 180°

What does it mean to be a linear pair?

These angles are next to each other. They share a ray.

What is the definition of adjacent angles?

Each pair of opposite angles made by two intersecting lines.

What is the definition of vertical angles?

A line that intersects two or more lines at different points

Define: Transversal

Two angles that occupy corresponding positions.

Define: Corresponding Angles

Two angles on opposite sides of the transversal and on the inside of the two lines

Define: Alternate Interior Angles

Two angles on opposite sides of the transversal and on the outside of the two lines

Define: Alternate Exterior Angles

Two angles that lie between two lines on the same sides of the transversal.

Define: Same Side Interior Angles