Classify Polygons and Find the Sum of the Measures of the Interior Angles

Find the sum of the measures of the interior angles for a 14-gon

• 2160 $\degree$

• 2520 $\degree$

• 3240 $\degree$

The sum of the measures of the interior angles of a convex polygon is 2340°. Classify this polygon by its number of sides.

• Octagon

• Hexagon

• 13-gon

• 15-gon

Find the value of x

• 53

• 76

• 66

• 87

Tags

CCSS.HSG.C.A.3

Find the value of x.

• None of the above

Find the sum of the interior angle measures of a convex 20-gon.

• 3240 degrees

• 3600 degrees

• 5400 degrees

• 3060 degrees

Find the value of x

• 120

• 117

• 112

• 92

Find the measure of an interior angle of a regular 90-gon.

Find the measures of the interior and exterior angles of a regular 18-gon.

• 108 & 72 degrees

• 160 & 20 degrees

• 176 & 4 degrees

• 90 & 90 degrees

How many sides does this polygon have?

• 14

• 15

• 16

• 19