Lines & Angles

Lines & Angles

By James Flowers

Angles & Lines​

• Transversal: a line that intersects two or more lines

• Interior angles: are angles inside of parallel lines cut by a transversal

• ​Exterior angles: are angles outside of parallel lines cut by transversal

• Alternate Interior angles: are angles that lie on opposite sides of the transversal​; When lines are parallel these angles are congruent

• Alternate Exterior angles: are angles that lie on opposite sides of the transversal​; When lines are parallel these angles are congruent​

• Corresponding angles: are the angles that are formed when two parallel lines are intersected by the transversal.​

Angles whose sum are equal to 180^o

These angles create a straight line​.

Supplementary Angles

Angles whose sum are equal to 90^o

Created from intersecting perpendicular lines​.

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Complimentary Angles

Angles & Lines

Perpendicular lines create 90^o angles that are congruent

are defined as two angles whose sum is 90 degrees.

Complimentary angles

​

​are made when two angles equal a sum of 180 degrees

Supplementary angles

Poll

What is the name of the line that intersects parallel lines?

• Acute

• Transversal

• Intersecting

• Positive

• Negative

Poll

Lines that never intersect are called

• Transversal

• Negative

• Positive

• Parallel

are angles opposite each other where two lines cross.

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Vertical Angles

Multiple Select

• A

• B

• C

Multiple Choice

• A

• B

• C

Multiple Choice

Angels 1 & 3 represent what type of angles?

• Vertical

• Acute

• Corresponding

• Adjacent

• are angles outside of parallel lines cut by transversal

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​Alternate Exterior Angles

Multiple Choice

• A

• B

• C

Multiple Choice

• A

• B

• C

Multiple Choice

A pair of Alternate Exterior angles are...

• Angles 1 & 5

• Angles 4 & 6

• Angles 3 & 7

• Angles 2 & 8

are the angles that are formed when two parallel lines are intersected by the transversal

​

Same angle ,same side, different lines

​Corresponding Angles

​

Multiple Select

A pair of corresponding angles are...

• Angles 1 & 5

• Angles 4 & 6

• Angles 3 & 7

• Angles 2 & 8

Multiple Choice

• A

• B

• C

• are angles inside of parallel lines cut by a transversal

Alternate Interior Angles

Multiple Select

• A

• B

• C

Multiple Select

In the image these lines represent...

• Parallel Lines

• Intersecting Lines

• Perpendicular Lines

• Obscure Lines

​​are the angles that are formed when two parallel lines are intersected by the transversal.

​Corresponding

angles

​

Multiple Select

A pair of Alternate Interior angles are...

• Angles 1 & 5

• Angles 4 & 6

• Angles 3 & 5

• Angles 2 & 8

Multiple Choice

In the image these lines represent...

• Parallel Lines

• Intersecting Lines

• Perpendicular Lines

• Obscure Lines

Multiple Select

Identify the perpendicular lines

• FE & DE

• BC & HG

• HB & BC

• FG & HG

Multiple Select

Identify the parallel lines

• FE & DE

• BC & HG

• HB & CD

• FG & HG

Multiple Select

• A

• B

• C

Time to show what you know, go back into Google classroom and complete the assigned Quizizz.

Replace this with a sub-header that can be in multiple lines. ​