Angles of Polygons

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 measure of ONE interior angle in a regular pentagon (5-sides)?

• 90°
• 108°
• 120°
• 180°

Tags

CCSS.4.MD.C.5

CCSS.4.MD.C.7

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 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

The measures of one interior angle of a regular polygon is 140^o. What is the name of the polygon?

• Decagon

• Nonagon

• Heptagon

• Hexagon

Tags

CCSS.7.G.B.5

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

• Octogon

• Nonagon

• Decagon

• Dodecagon

What is the formula for one exterior angle in a regular polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

Tags

CCSS.7.G.B.6

Solve for X

• 27
• 72
• 80
• 14

Tags

CCSS.7.EE.B.4

CCSS.7.G.B.5

Find the value of X.

• 60
• 120
• 85
• 55

Tags

CCSS.7.G.B.5