Unit 7 Review

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 is given by the formula (n - 2) × 180°.

Front

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

Back

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

Front

What is the sum of the exterior angles of any polygon?

Back

The sum of the exterior angles of any polygon is always 360°.

Front

What is a trapezoid?

Back

A trapezoid is a four-sided figure (quadrilateral) with at least one pair of parallel sides.

Front

How do you find the missing angle in a trapezoid?

Back

To find the missing angle in a trapezoid, use the property that the sum of the angles in any quadrilateral is 360°.

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) where opposite sides are parallel and equal in length.

Tags

CCSS.3.G.A.1

Front

How do you solve for x in a parallelogram?

Back

In a parallelogram, opposite angles are equal, and adjacent angles are supplementary. Use these properties to set up equations to solve for x.

Tags

CCSS.HSG.CO.C.11

Front

What is the measure of each interior angle of a regular octagon?

Back

Each interior angle of a regular octagon measures 135°.

Front

How many sides does a polygon have if the sum of its interior angles is 1620°?

Back

The polygon has 11 sides.

Front

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

Back

The interior angle and exterior angle at each vertex of a polygon are supplementary, meaning they add up to 180°.