HW 3 Internal angles of a polygon

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

• 1440°
• 900°
• 1080°
• 1260°

Tags

CCSS.7.G.B.6

What is the SUM of the angle measures in a hexagon (6 sides)?

• 720°
• 1080°
• 600°
• 540°

Tags

CCSS.7.G.B.5

What is the SUM of the angle measures in a triangle (3 sides)?

• 60°
• 90°
• 120°
• 180°

Tags

CCSS.8.G.A.5

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

• 180°

• 540°

• 720°

• 1080°

Tags

CCSS.7.G.B.6

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

• 720°

• 900°

• 1080°

• 1260°

Tags

CCSS.7.G.B.5

What is the name of a 7 sided polygon?

• hexagon
• heptagon
• octagon
• nonagon

Tags

CCSS.2.G.A.1

What is a polygon called if the sum of its interior angles equals 1440° ?

• Octogon

• Nonagon

• Decagon

• Dodecagon

What is the formula for the sum of interior angles in a polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

Tags

CCSS.7.G.B.6

Which one of these has 4 sides?

• hendecagon

• pentagon

• quadrilateral

• hexagon

Tags

CCSS.2.G.A.1

Find the sum of the interior angles of a 50-gon

• 8640 degrees

• 360 degrees

• 9000

• 172.8