3i - Angle Sums of Polygons

What is the sum of the angle measures in a triangle?

• 60°
• 90°
• 120°
• 180°

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

Calculate the sum of the interior angle measures of a polygon with 16 sides.

• 2880 degrees
• 2520 degrees
• 344 degrees
• 360 degrees

What is the formula for the sum of the interior angles of a polygon?

• S=360
• S=(n-2)180
• n=360/ext. angle
• 1 int. angle + 1 ext. angle=180

What is the SUM of the angle measures in a nonagon (9 sides)?

• 1440°
• 900°
• 1080°
• 1260°

What is the SUM of the angle measures in a hexagon (6 sides)?

• 720°
• 1080°
• 600°
• 540°

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

• 60°
• 80°
• 108°
• 120°

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

• 90°
• 108°
• 120°
• 180°