Unit 9 (Polygon Interior & Exterior Angles / Tessellations)

If an interior angle of a regular polygon measures 144°, how many sides does it have?

• 8

• 9

• 10

If an exterior angle of a regular polygon measures 15°, how many sides does it have?

• 23

• 24

• 25

If the sum of the interior angles of polygon is 2520 degrees, how many sides does it have?

Which of these images represents a tessellation?

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• 
• 
• 

Tags

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.4

CCSS.HSG.CO.A.5

What is the measure of each interior angle of a regular 13-gon? Round to the nearest tenth.

Find the value of X.

• 60
• 120
• 85
• 55

Tags

CCSS.7.EE.B.4

CCSS.7.G.B.5

Find the value of X

• 94
• 25
• 36
• 180

Tags

CCSS.7.G.B.5

What is the measure of each exterior angle of a regular 67-gon?

• 5.4

• 11700

• 3.2

• 113

What is the sum of the measures of the exterior angles of a pentagon?

• 180

• 360

• 540

• 760

What is the sum of the measures of the interior angles of a decagon?

• 1440°

• 900°

• 1080°

• 1260°