6.1 Check-up

Is the figure a polygon? Is it convex or concave?

• Not a polygon, convex
• Polygon, convex
• Not a polygon
• Polygon, concave

Tags

CCSS.2.G.A.1

How many sides does a decagon have?

• 12
• 9
• 7
• 10

Tags

CCSS.2.G.A.1

 What is the name of this polygon?

• a pentagon
• a quadrilateral
• an octagon
• a triangle

Tags

CCSS.2.G.A.1

Three of the angles in a quadrilateral have a sum of 252^o.  What is the measure of the fourth angle?

• 108^o
• 360^o
• 72^o
• 56^o

Tags

CCSS.HSG.C.A.3

Find the sum of the interior of angles in a 12-gon

• 1800
• 1080
• 1620
• 1260

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

• 17
• 15
• 19
• 11

What is the sum of the exterior angles of a 20-gon?

• 180
• 360
• 3240
• 162

Find the value of x.

• 110
• 90
• 130
• 120

What is the measure of one interior angle of a regular 45-gon?

• 180°
• 360°
• 172°
• 93°