Polygon Angle-Sum Theorems

Find the sum of the interior angles of a nonagon.

• 1260
• 900
• 1620
• 180

Find the measure of ONE exterior angle of a regular decagon.

• 36
• 10
• 18
• 40

Find the measure of ONE interior angle of a regular dodecagon.

• 150
• 120
• 1800
• 20

Find the number of sides of a polygon with one exterior angle measuring 6⁰.

• 60
• 30
• 20
• 10

Find the number of sides of a regular polygon with one interior angle measuring 165⁰

• 24
• 22
• 26
• 20

A polygon's interior angles add up to 2700.  How many sides does the polygon have?

• 17
• 15
• 19
• 11

Find the value of the variable(s).

• x = 88
• x = 176
• x = 90
• x = 174

A polygon with six sides is called a(n) ______________.

• hexagon
• pentagon
• decagon
• septagon

Tags

CCSS.2.G.A.1

A polygon with 5 sides is called a(n) _____________.

• pentagon
• hexagon
• septagon
• quadrilateral

Tags

CCSS.2.G.A.1

A polygon with 8 sides is called a(n) __________________.

• octagon
• decagon
• heptagon
• dodecagon

Tags

CCSS.2.G.A.1