Angles in Polygon

Find the measure of the indicated angle. 

• 89

• 211

• 119

• 81

Tags

CCSS.8.G.A.5

What is the formula for finding ONE interior angle of a polygon?

• S = (n-2) * 180 / n

• S = n * 180 / (n-2)

• S = (n-2) * 180

• S = 180 / n

The sum of the interior angles in a polygon is 2520 degrees. What is the name of this polygon? (Hint: Find n.)

• Dodecagon

• 18-gon

• 16-gon

• 14-gon

What is the formula for the sum of the interior angles?

• S = 360

• S = (n - 2)*180

• 360/ext. angle

• 1 int. angle + 1 ext. angle = 180

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

• 1440 degrees

• 1080 degrees

• 900 degrees

• 1260 degrees

What is the SUM of the angle measures in a hexagon?

• 720 degrees

• 360 degrees

• 600 degrees

• 540 degrees

Find the value of x.

• 94

• 36

• 25

• 180

What is the measure of ONE interior angle of a regular pentagon?

• 108 degrees

• 120 degrees

• 90 degrees

• 180 degrees

The measure of one angle of a regular polygon is 140 degrees. What is the name of the polygon? (HINT: SOLVE FOR n.)

• Decagon

• Heptagon

• Nonagon

• Hexagon

What is the measure of ONE interior angle of a regular hexagon?

• 120 degrees

• 60 degrees

• 108 degrees

• 80 degrees