IP--Transversals and Angles Pairs

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet. They are always the same distance apart and have the same slope.

Tags

CCSS.HSG.CO.A.1

Front

What is the Corresponding Angles Postulate?

Back

If two parallel lines are cut by a transversal, then each pair of corresponding angles is equal.

Tags

CCSS.8.G.A.5

Front

What are Alternate Interior Angles?

Back

Alternate interior angles are pairs of angles that lie between the two lines and on opposite sides of the transversal. If the lines are parallel, these angles are equal.

Tags

CCSS.8.G.A.5

Front

What are Same-Side Interior Angles?

Back

Same-side interior angles are pairs of angles that lie between the two lines and on the same side of the transversal. If the lines are parallel, these angles are supplementary (add up to 180°).

Front

How do you find the measure of an angle when given its corresponding angle?

Back

If two lines are parallel, the measure of a corresponding angle is equal to the measure of the given angle.

Tags

CCSS.8.G.A.5

Front

If angle 1 = 27°, what is the measure of angle 2 if lines are parallel?

Back

Angle 2 = 27° (because they are corresponding angles).

Tags

CCSS.8.G.A.5

Front

What is the relationship between alternate exterior angles when lines are parallel?

Back

Alternate exterior angles are equal when two parallel lines are cut by a transversal.

Tags

CCSS.8.G.A.5

Front

If m∠1 = 11x - 9° and m∠5 = 7x + 9°, how do you find x?

Back

Set the equations equal: 11x - 9 = 7x + 9. Solve for x to find x = 4.5.

Tags

CCSS.8.G.A.5

Front

What is the sum of the interior angles on the same side of a transversal?

Back

The sum of the same-side interior angles is 180° when the lines are parallel.

Tags

CCSS.8.G.A.5

Front

If angle 3 = 130°, what is the measure of angle 4 if lines are parallel?

Back

Angle 4 = 50° (because they are same-side interior angles).