IM2 Topic 12 (Lesson 1)

Front

What is an alternate interior angle?

Back

An alternate interior angle is formed when a transversal crosses two parallel lines, creating pairs of angles on opposite sides of the transversal but inside the two lines.

Front

Identify the alternate interior angle to ∠3.

Back

∠5 is the alternate interior angle to ∠3.

Front

What is an alternate exterior angle?

Back

An alternate exterior angle is formed when a transversal crosses two parallel lines, creating pairs of angles on opposite sides of the transversal but outside the two lines.

Front

Identify the alternate exterior angle to ∠8.

Back

∠2 is the alternate exterior angle to ∠8.

Front

What is the measure of angle MNP if m∠MNP = 56°?

Back

m∠MNP is 56°.

Front

What is the measure of angle 4 if it is given as 90°?

Back

m∠4 is 90°.

Front

What is a corresponding angle?

Back

A corresponding angle is formed when a transversal crosses two parallel lines, creating pairs of angles that are in the same position relative to the two lines.

Front

Identify the corresponding angle to ∠1.

Back

∠5 is the corresponding angle to ∠1.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180°.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

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