Angles formed by parallel lines and tansversals

Parallel lines ...

• will never intersect
• intersect to form right angles
• are curved lines

What is a transversal?

• A line that intersects two or more lines
• The angles opposite of each other when two lines cross
• Two angles whose sum measures 180 degrees
• Lines that intersect to form a 90 degree angle

What are supplementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect

What are corresponding angles?

• Angles whose sum measures 180 degrees
• Angles whose sum measures 90 degrees
• Two angles in the same position when parallel lines are cut by a transversal, they are equal

• The angles opposite of each other when two lines cross, they are equal

What are alternate interior angles?

• A pair of angles on the outer side of two lines cut by a transversal, but on opposite sides of the transversal, they are equal

• The angles opposite of each other when two lines cross, they are equal

• A pair of angles on the inner side of two lines cut by a transversal, but on opposite sides of the transversal, they are equal

• Two angles in the same position when parallel lines are cut by a transversal, they are equal

What are alternate exterior angles?

• A pair of angles on the outer side of two lines cut by a transversal, but on opposite sides of the transversal, they are equal

• The angles opposite of each other when two lines cross, they are equal

• A pair of angles on the inner side of two lines cut by a transversal, but on opposite sides of the transversal, they are equal

• Two angles in the same position when parallel lines are cut by a transversal, they are equal

What are vertical angles?

• The angles inside the triangle that are not adjacent to the exterior angle
• The angles opposite of each other when two lines cross, they are equal

• The angles inside of a shape
• Two angles whose sum measures  90 degrees

Which of the following images shows a pair of corresponding angles?

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• Alternate Interior Angles

• Alternate Exterior Angles

• Same-side Interior Angles

• Corresponding Angles

• None of these

What types of angles are Angle X and Angle Y?

• Corresponding Angles

• Alternate Interior Angles

• Alternate Exterior Angles