Angles on a Parallel Line

Angles in
Parallel Lines

What each of the angles are called and what do they do.

Fill in the Blank

Starter Question - What do angles on a straight line add up to?

Corresponding angles are angles that are facing the same way.
This is the F shaped angle.
These angles are equal.

For Example - if one is 60⁰ then the other is going to be 60⁰

Corresponding Angles

Alternate angles are angles that are face two different ways and are on top of each other.
This is the Z shaped angle.
These angles are equal.

For Example - if one is 50⁰ then the other is 50⁰

Alternate Angles

Allied or Co-Interior angles are angles that are in the same space.
This is the C shaped angles.
These angles add up to 180.

For Example - if one of the angles were 70⁰ then the other angle will be 110⁰

Allied or Co- Interior Angles

Opposite angles are angles that are exactly opposite to it.
This is the X shaped angle.
These angles are equal.

For example - if one angle is 20⁰ then the other angle is 20⁰

Opposite Angles

Match

Match the following angles to what they are called.

The corresponding angles

The alternate angles

The co-interior angles

opposite angles

• The corresponding angles

• The alternate angles

• The co-interior angles

• opposite angles

Draw

What does a co-interior angle look like and what would it be if one of the angles were 45⁰?

Multiple Choice

What is X and Y?

• 45

• 90

• 53

• 27

Multiple Choice

What is X?

• 32

• 125

• 148

• 50