Angles in a polygon

What is the formula for the sum of the interior?

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

Tags

CCSS.HSG.CO.C.10

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

• 1440°
• 900°
• 1080°
• 1260°

Tags

CCSS.7.G.B.6

Find the value of X

• 94
• 25
• 36
• 180

Tags

CCSS.7.G.B.5

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

• 3960
• 360
• 15
• 4280

Tags

CCSS.7.G.B.6

What is the name of a 7 sided polygon?

• hexagon
• heptagon
• octagon
• nonagon

Tags

CCSS.2.G.A.1

Find the value of X.

• 100° 
• 110° 
• 150° 
• 168° 

Tags

CCSS.7.G.B.5

Find the value of X.

• 60
• 120
• 85
• 55

Tags

CCSS.7.G.B.5

Find the measure of angle K.

• 9

• 97°

• 48°

• 79°

Tags

CCSS.7.G.B.5

How many sides does a dodecagon have?

• 10

• 11

• 12

• 13

Tags

CCSS.2.G.A.1

What do you call a polygon with "n" sides?

• n-gon

• There is no name for it

• nonagon

• polygon

Tags

CCSS.2.G.A.1