Geometry Topic 6 Review

Front

What is the formula to calculate the measure of each interior angle of a regular polygon?

Back

The measure of each interior angle of a regular polygon can be calculated using the formula: (n-2) * 180° / n, where n is the number of sides.

Front

How do you find the measure of an exterior angle of a regular polygon?

Back

The measure of each exterior angle of a regular polygon can be found using the formula: 360° / n, where n is the number of sides.

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

In a parallelogram, what is the relationship between opposite angles?

Back

In a parallelogram, opposite angles are equal.

Front

What is the relationship between consecutive angles in a parallelogram?

Back

In a parallelogram, consecutive angles are supplementary, meaning they add up to 180°.

Front

If one angle of a parallelogram is 129°, what is the measure of the opposite angle?

Back

The opposite angle is also 129°.

Front

If two sides of a parallelogram are equal, what type of parallelogram is it?

Back

It is a rhombus.

Front

What is the definition of a regular polygon?

Back

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

Front

How do you calculate the length of a diagonal in a parallelogram?

Back

The length of a diagonal can be calculated using the formula: d = √(a² + b² - 2ab * cos(θ)), where a and b are the lengths of the sides and θ is the angle between them.

Front

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

Back

162°.