8th grade Ch 5 L4

Find the sum of the interior angle measures of each polygon. (Example 1) 1. quadrilateral _______

• 360°

• 180°

• 540°

• 720°

Find the sum of the interior angle measures of each polygon. (Example 1) 2. nonagon _______

• 1260°

• 1080°

• 1440°

• 1620°

Find the sum of the interior angle measures of each polygon. (Example 1) 3. 12-gon

• 1800°

• 1620°

• 2160°

• 1440°

The quilt pattern shown is made of repeating equilateral triangles. What is the measure of one interior angle of an equilateral triangle?

• 60°

• 45°

• 90°

• 120°

Find the measure of an exterior angle of a regular pentagon.

• 72°

• 60°

• 90°

• 108°

The sum of the interior angle measures of a polygon can be found using which formula?

• (n - 2) × 180°

• n × 180°

• (n + 2) × 180°

• (n - 1) × 180°

Find the sum of the interior angle measures of each polygon. (Example 1) 1. pentagon _______

• 540°

• 360°

• 720°

• 180°

Find the sum of the interior angle measures of each polygon. (Example 1) 2. 11-gon _______

• 1620°

• 1440°

• 1800°

• 1980°

Find the sum of the interior angle measures of each polygon. (Example 1) 3. 13-gon _______

• 1980°

• 2160°

• 2340°

• 2520°

The soccer ball at the right consists of repeating regular pentagons and hexagons. Find the measure of one interior angle of a pentagon.

• 108°

• 120°

• 100°

• 90°