Polygons Angles Properties

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

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

Solve for x

• 80

• 110

• 17

• 60

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

• 180° 

• 540° 

• 720° 

• 1080° 

Find the value of X.

• 60

• 120

• 85

• 55

step 1: set up an equation

step 2: Solve for x

step 3: Plug in x for each expression

step 4: Add the two answers from step 3

• 82

• 41

• 17

• 90

Tags

CCSS.HSG.CO.C.11

step 1: set up an equation

step 2: Solve for x

step 3: Plug in x for each expression

step 4: Add the two answers from step 3

• 82

• 41

• 17

• 90

Tags

CCSS.HSG.CO.C.11

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

• 60°

• 80°

• 108°

• 120°

What is the sum of exterior angles for a 27-gon?

• 4860

• 4500

• 360

• 270

Solve for x

• 45

• 12

• 90

• 2

In a parallelogram, consecutive angles are __________.

• congruent

• supplementary

• corresponding

• parallel

Tags

CCSS.HSG.CO.C.11