Geometry; 3/16

Our lesson today focused on finishing up the notes from yesterday and showing a few different types of problems involving chords and distances from the center of a circle.  The students then spent the rest of the time working on their review sheet for the chapter 9 quiz tomorrow.


Assignment:  Chapter 9 Quiz review

Answer Key:

Basic Terms;  Tangents

1.  segment OT, segment OB
2.  segment BT
3.  line AB
4.  line TS
5.  segment AB, segment BT
6. point T
7.  8
8.  8n
9.  90
10.  segment QP congruent to segment QR
11.  perpendicular
12.  6
13.  6 radical 2
14.  ABCD
15.  15
16.  8
17.  28
18.  15
19.  18
20.  12

Arcs, Central Angles, and Chords

1.  90
2.  135
3.  135
4.  225
5.  45
6.  55
7.  20
8.  60 degrees
9.  150 degrees
10.  11 or 1 o'clock
11.  12
12.  8 radical 3
13.  60
14.  120
15.  120
16.  4 radical 3
17.  9
18.  9
19.  24
20.  14

Arcs and Chords

1.  x = 6;  y = 3.8
3.  8.9
5.  8.1
problem without a number:  8 radical 3
7.  11.4
9.  6.1
11.  9.4
13.  9.9