Geometry Chapter 5 Review

Front

What is the formula to find the sum of interior angles of a polygon?

Back

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

Front

How do you calculate the measure of each exterior angle of a regular polygon?

Back

The measure of each exterior angle of a regular polygon is calculated by the formula: 360° / n, where n is the number of sides.

Front

What is a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments that connect to form a closed chain or circuit.

Front

Define a regular polygon.

Back

A regular polygon is a polygon with all sides and all angles equal.

Front

What is the difference between interior and exterior angles?

Back

Interior angles are the angles inside a polygon, while exterior angles are the angles formed between a side of the polygon and the extension of an adjacent side.

Front

What is the point of concurrency for the perpendicular bisectors of a triangle called?

Back

The point of concurrency for the perpendicular bisectors of a triangle is called the Circumcenter.

Front

How many sides does a polygon have if each exterior angle measures 9°?

Back

A polygon with each exterior angle measuring 9° has 40 sides.

Front

What is the sum of the interior angles of a 27-gon?

Back

The sum of the interior angles of a 27-gon is 4500°.

Front

What is the measure of each exterior angle of a 20-gon?

Back

The measure of each exterior angle of a 20-gon is 18°.

Front

What is a centroid in a triangle?

Back

The centroid is the point where the three medians of a triangle intersect, and it is also the center of mass.