Geometry; 3/27

We worked through one more triangle proof today involving triangles to review the various concepts that we are working with in circles.  We also walked through 2 more combo problems together that involve multiple circle concepts from chapter 9.  The students then got started on their chapter 9 review sheets.

Assignment:  Chapter 9 Review sheet

Test on Chapter 9 Tomorrow

Circles

1.  90
2.  65
3.  30
4.  30
5.  95
6.  180
7.  105
8. 255
9. 4
10.  10
11.  35
12.  5 radical 3
13.  68
14.  60
15.  7.2
16.  x = 65;  y = 115
17.  95
18.  70
19.  9 radical 21
20.  14.5

Practice 36;  Angles and Segments

1.  100
2.  26
3.  70
4.  50
5.  155
6.  90
7.  40
8.  20
9.  90
10.  110
11.  6
12.  13.3
13.  40
14.  12
15.  x = 6 or x = 4


Practice 37;  Chapter 9 Practice

1.  AD
2.  OA, OD, OC
3.  AC or AD
4.  BA or BC
5.  110
6.  55
7.  90
8.  55
9.  70
10.  5
11.  120
12.  30
13.  15
14.  4
15.  8
16.  2


1.  5
2.  PR, PQ, PS
3.  tangent
4.  inscribed
5.  58
6.  arc RQ and arc QS;  arc RP and arc PS
7.  RP and PS
8.  AD = 9;  BC = 5
9.  arc JK = 130;  arc HKJ = 310
10.  LM = 3 radical 3