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LESSON
6.1
NAME _________________________________________________________ DATE ___________
Practice C
For use with pages 322–328
Decide whether the figure is a polygon. If not, explain why.
Lesson 6.1
1.
2.
3.
Use the number of sides to tell what kind of polygon the shape is.
Then state whether the polygon is convex or concave.
4.
5.
6.
Draw a figure that fits the description.
7. A convex hexagon
8. A concave nonagon
9. An equilateral hexagon that is not equiangular
10. An equiangular hexagon that is not equilateral
11. An equiangular quadrilateral that is not regular
Use the information in the diagram to solve for x.
12.
(3x 41)
(2x 7)
13.
(4x 13)
14.
(6x 5)
(10x 5)
(7x 8)
2x 4x
(2x 7)
(5x 5)
(5x 2)
Decide if the following statements are true or false.
15. Every triangle is convex.
16. BE is a diagonal of polygon BACDE.
17. If quadrilateral WXYZ is regular, then it has four right angles.
18. The polygon shown in Exercise 5 is a regular polygon.
19. It is not possible to draw a concave quadrilateral.
20. All of the diagonals of a regular polygon are congruent.
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Geometry
Chapter 6 Resource Book
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