Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
22 Cards in this Set
 Front
 Back
polygon

the union of three or more coplanar segments in which exactly two segments intersect at each endpoint


sides

segments of a polygon


vertices

endpoints of the segments


tri

3


quad

4


penta

5


hexa

6


hepta

7


octa

8


nona

9


deca

10


undeca

11


dodeca

12


how many sides does a hexagon have?

5


how many angles are there inside a nonagon?

9


what is a polygon with twelve sides called?

dodecagon


concave

has at least one diagonal that lies outside the polygon


convex

all diagonals inside the polygon


theorem 5.1

180[n2]= sum of interior angles of a convex polygon


theorem 5.2

the sum of the measures of the exterior angles, one at each vertex, for any convex polygon is 360 degrees


theorem 5.3

every interior angle of a regular ngon measures (180[n2])/n


theorem 5.4

every exterior angle of a regular ngon measures 360/n
