3.3 Angles of a Polygon

If the sum of the interior angles of a polygon equals 900°, how many sides does the polygon have? 

• 7
• 9
• 10
• 12

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Find the value of x

• 141
• 150
• 135
• 163

Tags

CCSS.7.G.B.5

What is the measure of each interior angle of a regular octagon?

• 135

• 180

• 145

• 190

Tags

CCSS.7.G.B.5

CCSS.7.G.B.6

Find the interior angle sum for each polygon. Round your answer to the nearest tenth if

necessary.

• A

• B

• C

• D

Tags

CCSS.7.G.B.5

Find the measure of one interior angle in each regular polygon. Round your answer to the

nearest tenth if necessary.

• A

• B

• C

• D

What is the measure of ONE interior angle in a regular triangle (3 sides)?

• 15°
• 30°
• 60°
• 90°

Tags

CCSS.HSG.CO.C.10

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.4.MD.C.7

 What is the name of this polygon?

• a pentagon
• a quadrilateral
• an octagon
• a triangle

Tags

CCSS.4.G.A.2

Find the angle sum of the interior angles of the polygon.

• 180° 
• 540° 
• 720° 
• 1080° 

Tags

CCSS.7.G.B.6

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

• 1440°
• 900°
• 1080°
• 1260°

Tags

CCSS.7.G.B.6