Geometry Angles of Polygons

What is the SUM of the INTERIOR angles of a 12-gon?

• 3600

• 1800

• 2160

• 12

What is the SUM of the EXTERIOR angles of a hexagon?

• 360

• 120

• 60

• 720

What is the measure of one EXTERIOR angle of a regular octagon?

• 60

• 45

• 1080

• 135

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

• 90°

• 108°

• 120°

• 180°

The opposite angles of a parallelogram are ...

• complementary

• congruent

• supplementary

• perpendicular

Tags

CCSS.HSG.CO.C.11

In a parallelogram, consecutive angles are __________.

• congruent

• supplementary

• corresponding

• parallel

Tags

CCSS.HSG.CO.C.11

The figure is a parallelogram.  
Solve for x.  

• 7

• 2

• 0

• 4

Tags

CCSS.HSG.CO.C.11

3 angles of a quadrilateral are 110, 120 and 50.  What is the measure of the 4th angle?

• 60

• 70

• 80

• 130

Tags

CCSS.HSG.C.A.3

Solve for x in the rectangle.

• x=2

• x=7

• x=8

• x=3

Tags

CCSS.HSG.CO.C.11

A polygon has a sum of interior angle measures equal to 1620°. How many sides does the polygon have?

• 9

• 11

• 13

• 7