Retake Parallel lines and Angles in Polygons

Front

What are parallel lines?

Back

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

Tags

CCSS.HSG.CO.A.1

Front

What is the sum of the interior angles of a polygon with n sides?

Back

The sum of the interior angles of a polygon with n sides is (n-2) × 180°.

Front

What is a heptagon?

Back

A heptagon is a polygon with 7 sides.

Tags

CCSS.2.G.A.1

Front

How do you find the measure of one interior angle in a regular polygon?

Back

To find the measure of one interior angle in a regular polygon, use the formula: (n-2) × 180° / n, where n is the number of sides.

Front

What is the measure of each interior angle in a regular hexagon?

Back

Each interior angle in a regular hexagon measures 120°.

Front

What is the relationship between exterior and interior angles of a polygon?

Back

The exterior angle of a polygon is equal to 180° minus the interior angle.

Front

If two parallel lines are cut by a transversal, what are alternate interior angles?

Back

Alternate interior angles are the pairs of angles on opposite sides of the transversal but inside the two lines. They are equal.

Tags

CCSS.8.G.A.5

Front

What is the measure of angle 1 if angle 2 is 44° and they are alternate interior angles?

Back

Angle 1 measures 44°.

Tags

CCSS.8.G.A.5

Front

What is the value of x if two angles are supplementary and one angle is 23°?

Back

x = 180° - 23° = 157°.

Tags

CCSS.7.G.B.5

Front

What is a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments.

Tags

CCSS.2.G.A.1