Geometry; 4/24

We continued working on the area of regular polygons today by showing how to work with problems involving trig ratios.  We went over a couple of examples together before getting started on the review.  We also double checked our area formula note cards in order to be sure that all of the correct formulas were written down for tomorrow's quiz.


Assignment:  Chapter 11 quiz review worksheet

Practice 43:  Areas of Polygons

1.  35
2.  72
3.  36 radical 3
4.  77
5.  60
6.  60
7.  central angle = 60;  radius = 18;  apothem = 9 radical 3;  area = 486 radical 3
8.  50
9.  34
10.  48
11.  78
12.  42
13.  48
14.  27 radical 3
15.  18

Areas of Regular Polygons  (just do the odds)

1.  a. 8;  b.  12
3.  4 radical 3
5.  2 radical 3
7.  24 radical 3
9.  48
11.  64
13.  30x
15.  216 radical 3
17.  27 radical 3
19.  12 radical 3