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Name ____________________________
Block ________
Date __________________
6.1
Match each vocabulary term on the left with a part of polygon ABCDE on the right.
1. a diagonal
_______
A. point D
2. a side of the polygon _______
B. CE
3. a vertex of the polygon _______A
C. CD
A polygon is a closed flat figure made of straight segments that do not cross each other. Tell whether each
figure is a polygon. If it is a polygon, name it by the number of its sides.
4.
5.
6.
7.
A regular polygon has all sides congruent and all angles congruent. Tell whether each polygon is regular or
irregular. A concave polygon has a pair of sides that make a “cave” in the polygon. Tell whether each
polygon is concave or convex.
8.
9.
10.
11.
Find the sum of the measures of the interior angles of each convex polygon.
Formula: ______________
12. decagon
13. 16-gon
14. Octagon
15. heptagon
16. 20-gon
17. 36-gon
Find the measure of each interior angle of the regular polygon.
Formula: _______________
18. 11-gon
19. 14-gon
20. Pentagon
Name ____________________________
Block ________
Date __________________
Find the sum of the exterior angles of each convex polygon. ________
21. dodecagon
22. 15-gon
23. Triangle
Find the measure of each exterior angle of the regular polygon. ___________
24. decagon
25. 17-gon
27. Find the value of y in polygon JKLM.
26. Quadrilateral
28. Find the measure of each interior angle of pentagon ABCDE
.
29. Find the measure of each interior angle of quadrilateral RSTV.
30. Find the value of x:
An exterior angle measure of a regular polygon is given. Find the number of its sides and the measure of
each interior angle.
31. 120°
32. 72°
33. 36°
Name the convex polygon whose interior angle measures have each given sum.
34. 900°
35. 1800°
36. 2520°
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