Geometry; 9/15

We spent time in class today going through 4 more sample types of problems that will be on the test on Monday.  The distance and midpoint formulas were reviewed, as well as how to handle problems involving the segment addition and the angle addition postulate.  The students then spent the last part of the period working on their chapter 1 review sheet.


Assignment:  Chapter 1 Review sheet

Chapter 1 Test on Monday, Sept. 18


Answers to Review Sheet

Points, Lines, Planes, and Angles

1.  E
2.  C
3.  angle AEB or 180 degrees
4.  12
5.  -1
6.  J
7.  3
8.  ray LK or ray LJ
9.  angle AHE
10.  angle AHC
11.  obtuse
12.  angle addition postulate
13.  def. of midpoint
14.  def. of angle bisector
15.  segment addition postulate
16.  ray HE and ray HB
17.  angle DHE and angle EHC
18.  ray HF
19.  angle DHE and angle EHC  or angle 2 and angle 3
20.  false
21.  true
22.  false
23.  true


Distance and Midpoint Formula Review Problems

1.  formula in notes
2.  radical 130 or 11.4
3.  formula in notes
4.  midpoint = (-7.5, 4.5)
5.  endpoint = (-13, 8)
6.  x = 5,  AB = 29,  BC = 27
7.  x = 3.57;   AT = 12.25;  TL = 15
8.  x = 8;  angle AQB = 40;  angle BQC = 40;  angle AQC = 80
9.  x = 5;  angle LIK = 20;  angle JIL = 110;  angle JIK = 90
10.  x = 3;  angle RAM = 140;  angle MAN = 40;  angle RAN = 180