Parallel Lines and Transversals

Open this link to observe various kinds of angles that are formed within parallel lines.

Move the various handles to answer the following questions.

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Corresponding Angles:
What kind of angles do you think these are?
What do you think 'correspond' means?
What happens to these angles when you make the two parallel lines overlap?
What else do you observe? What are some easy ways to identify corresponding angles?

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Corresponding Angles are

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Interior Alternate Angles:
What kind of angles do you think these are?
What does interior mean?
What does alternate mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Interior Alternate Angles?

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Interior Alternate Angles are

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Exterior Alternate Angles:
What kind of angles do you think these are?
What does exterior mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Exterior Alternate Angles?

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Exterior Alternate Angles are

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Same Side Interior Angles:
What kind of angles do you think these are?
Why do you think they are called same side angles?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Same Side Interior Angles?

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Same Side Interior Angles are

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Without using the Geogebra tool, take a guess at:
Same Side Exterior Angles
What kind of angles do you think these are?
What do you think will happen to these angles when you make the two parallel lines overlap? What are some easy ways to identify Same Side Exterior Angles? Are they equal or supplementary?

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Parallel Lines and Transversals

Corresponding Angles:
What kind of angles do you think these are?
What do you think 'correspond' means?
What happens to these angles when you make the two parallel lines overlap?
What else do you observe? What are some easy ways to identify corresponding angles?

Corresponding Angles are

Interior Alternate Angles:
What kind of angles do you think these are?
What does interior mean?
What does alternate mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Interior Alternate Angles?

Interior Alternate Angles are

Exterior Alternate Angles:
What kind of angles do you think these are?
What does exterior mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Exterior Alternate Angles?

Exterior Alternate Angles are

Same Side Interior Angles:
What kind of angles do you think these are?
Why do you think they are called same side angles?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Same Side Interior Angles?

Same Side Interior Angles are

Which of these angles are supplementary in nature? (Select all correct options)

Corresponding Angles:
What kind of angles do you think these are?
What do you think 'correspond' means?
What happens to these angles when you make the two parallel lines overlap?
What else do you observe? What are some easy ways to identify corresponding angles?

Corresponding Angles are

Interior Alternate Angles:
What kind of angles do you think these are?
What does interior mean?
What does alternate mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Interior Alternate Angles?

Interior Alternate Angles are

Exterior Alternate Angles:
What kind of angles do you think these are?
What does exterior mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Exterior Alternate Angles?

Exterior Alternate Angles are

Same Side Interior Angles:
What kind of angles do you think these are?
Why do you think they are called same side angles?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Same Side Interior Angles?

Same Side Interior Angles are

Which of these angles are supplementary in nature? (Select all correct options)

Parallel Lines and Transversals

Parallel Lines and Transversals

Corresponding Angles:What kind of angles do you think these are? What do you think 'correspond' means? What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify corresponding angles?

Corresponding Angles are

Interior Alternate Angles:What kind of angles do you think these are? What does interior mean?What does alternate mean?What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Interior Alternate Angles?

Interior Alternate Angles are

Exterior Alternate Angles:What kind of angles do you think these are?What does exterior mean?What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Exterior Alternate Angles?

Exterior Alternate Angles are

Same Side Interior Angles:What kind of angles do you think these are?Why do you think they are called same side angles?What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Same Side Interior Angles?

Same Side Interior Angles are

Which of these angles are supplementary in nature? (Select all correct options)

Corresponding Angles:What kind of angles do you think these are? What do you think 'correspond' means? What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify corresponding angles?

Corresponding Angles are

Interior Alternate Angles:What kind of angles do you think these are? What does interior mean?What does alternate mean?What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Interior Alternate Angles?

Interior Alternate Angles are

Exterior Alternate Angles:What kind of angles do you think these are?What does exterior mean?What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Exterior Alternate Angles?

Exterior Alternate Angles are

Same Side Interior Angles:What kind of angles do you think these are?Why do you think they are called same side angles?What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Same Side Interior Angles?

Same Side Interior Angles are

Which of these angles are supplementary in nature? (Select all correct options)

Corresponding Angles:
What kind of angles do you think these are?
What do you think 'correspond' means?
What happens to these angles when you make the two parallel lines overlap?
What else do you observe? What are some easy ways to identify corresponding angles?

Interior Alternate Angles:
What kind of angles do you think these are?
What does interior mean?
What does alternate mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Interior Alternate Angles?

Exterior Alternate Angles:
What kind of angles do you think these are?
What does exterior mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Exterior Alternate Angles?

Same Side Interior Angles:
What kind of angles do you think these are?
Why do you think they are called same side angles?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Same Side Interior Angles?

Corresponding Angles:
What kind of angles do you think these are?
What do you think 'correspond' means?
What happens to these angles when you make the two parallel lines overlap?
What else do you observe? What are some easy ways to identify corresponding angles?

Interior Alternate Angles:
What kind of angles do you think these are?
What does interior mean?
What does alternate mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Interior Alternate Angles?

Exterior Alternate Angles:
What kind of angles do you think these are?
What does exterior mean?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Exterior Alternate Angles?

Same Side Interior Angles:
What kind of angles do you think these are?
Why do you think they are called same side angles?
What happens to these angles when you make the two parallel lines overlap? What else do you observe? What are some easy ways to identify Same Side Interior Angles?