Transversals and Triangles

Front

What is a transversal in geometry?

Back

A transversal is a line that intersects two or more other lines at distinct points.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a transversal crosses two lines.

Tags

CCSS.8.G.A.5

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 degrees.

Tags

CCSS.8.G.A.5

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie between two lines and on opposite sides of a transversal.

Tags

CCSS.8.G.A.5

Front

What is the relationship between parallel lines and corresponding angles?

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

How do you find the measure of an angle when given the measures of other angles in a triangle?

Back

To find the measure of an unknown angle in a triangle, subtract the sum of the known angles from 180 degrees.

Tags

CCSS.8.G.A.5

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Tags

CCSS.7.G.B.5

Front

What is the definition of an exterior angle of a triangle?

Back

An exterior angle of a triangle is formed by one side of the triangle and the extension of an adjacent side.

Front

What is the relationship between an exterior angle and the two opposite interior angles?

Back

The measure of an exterior angle is equal to the sum of the measures of the two opposite interior angles.

Tags

CCSS.8.G.A.5

Front

What is the definition of supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Tags

CCSS.7.G.B.5