Polygons and Parallelograms

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

• 1440°
• 900°
• 1080°
• 1260°

What is the measure of each exterior angle of a 20-gon?

• 14°
• 15°
• 17°
• 18°

What is the measure of each interior angle of a regular octagon?

• 135
• 180
• 145
• 190

Tags

CCSS.7.G.B.5

The sum of the interior angles of a polygon is 1620°.  How many sides does the polygon have?

• 8
• 11
• 3
• 16

What is the sum of the measure of the exterior angles of a nonagon?

• 360
• 180
• 940
• 1560

The sum of the interior angles of a polygon is 3960°. How many sides does the polygon have?

• 12
• 24
• 25
• 13

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

If the exterior angle of a regular polygon measures 9°, now many sides does the polygon have?

• 40
• 20
• 10
• 15

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

Solve of X

• 80
• 110
• 17
• 60

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSA.REI.A.1

Find the value of X

• 112°
• 116°
• 90°
• 244°

Tags

CCSS.HSG.C.A.3

Solve for X

• 27
• 72
• 80
• 14

Tags

CCSS.7.G.B.5

CCSS.7.EE.B.4