Interior Angles of Polygons

What is the best name for this shape?

• Convex Dodecagon

• Concave Dodecagon

• Concave Decagon

• Regular Decagon

Tags

CCSS.2.G.A.1

What is the best name for this polygon?

• Regular Hexagon

• Convex Hexagon

• Regular Octagon

• Concave Octagon

Tags

CCSS.2.G.A.1

What is the interior Angle sum for a 20 sided polygon?

• 162

• 3240

• 3600

• 3960

What is the measure of 1 interior angle of a regular nonagon?

• 140

• 160

• 180

• 1260

What is the interior angle sum for a regular undecagon?

• 147.3

• 1450

• 1620

• 1960

What is the measure of one interior angle of a regular 36 sided polygon?

• 132

• 145

• 160

• 170

What is the value of x?

• x =100

• x =102

• x =114

• x =123

What is the value of x?

• x = 28

• x= 35

• x = 65

• x = 68

Tags

CCSS.HSG.C.A.3

What is the value of x?

• x = 230

• x = 164

• x = 138

• x = 115

What is the minimum number of triangles that you can divide a decagon into?

• 4 triangles

• 6 triangles

• 8 triangles

• 10 triangles