Unit 8 Test: Polygons & Quadrilaterals

Front

What is a regular nonagon?

Back

A regular nonagon is a polygon with nine equal sides and nine equal angles.

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

How do you determine if a quadrilateral is a parallelogram using distance and slope formulas?

Back

A quadrilateral is a parallelogram if both pairs of opposite sides are equal in length and/or the slopes of opposite sides are equal.

Front

What is the distance formula?

Back

The distance formula is d = √((x2 - x1)² + (y2 - y1)²), used to find the distance between two points (x1, y1) and (x2, y2).

Front

What is the slope formula?

Back

The slope formula is m = (y2 - y1) / (x2 - x1), used to find the slope of a line between two points.

Front

What is a kite in geometry?

Back

A kite is a quadrilateral with two distinct pairs of adjacent sides that are equal.

Front

What is the relationship between the angles in a kite?

Back

In a kite, the angles between the unequal sides are equal, and the angles between the equal sides are also equal.

Front

What is the definition of a rectangle?

Back

A rectangle is a quadrilateral with four right angles and opposite sides that are equal in length.

Front

How do you find the length of the diagonal in a rectangle?

Back

The length of the diagonal can be found using the Pythagorean theorem: d = √(length² + width²).

Front

What is the measure of the angles in a rectangle?

Back

All angles in a rectangle measure 90°.