Internal and External Angles of a Polygon

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

• ^{(n - 2)360}

• 180n

• (n-2)180

• ((n-2)180)/n

• 360/n

What is the formula to find one interior angle of a regular polygon?

• (n-2)180

• ((n-2)180)/360

• ((n-2)360)/n

• 360/n

• ((n-2)180)/n

How do the interior and exterior angles of a polygon relate?

• They are complementary

• They are congruent

• They are supplementary

• They have no relationship

• The relationship depends on what polygon is being used

What is the formula to find one exterior angle in a regular polygon?

• 360/n

• (n-2)180

• it's always 360^o

• 180/n

• ((n-2)180)/n

What is the sum of the interior angles of the nonagon shown?

• 720° 
• 900° 
• 1080° 
• 1260° 

What is the sum of the interior angles of the hexagon shown?

• 180° 
• 540° 
• 720° 
• 1080° 

What is the sum of the interior angles for a 24-gon?

• 3960
• 360
• 15
• 4280

Find the value of X.

• 100° 
• 110° 
• 150° 
• 168° 

What is the measure of ONE interior angle in a regular pentagon (5-sides)?

• 90°
• 108°
• 120°
• 180°

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

• 60°
• 80°
• 108°
• 120°