Tuesday, January 30, 2018

Honors Geometry; 1/30

Today was a review day for the chapter 13 test.  We worked on 4 different problem types as partners for the first half of the period in order to review several of the main ideas of the chapter.  The last part of the period was spent working on a review sheet, which focused our study on the last 4 sections of this chapter.  The students helped each other with the assignment as they reviewed for the chapter 13 test tomorrow.


Assignment:  Chapter 13 Review worksheet

Answer key:

1.  1/2
2.  -3/4
3.  3/2
4.  y = -3/4 x + 13/2
5.  y = -7/3 x + 6
6.  y = -7
7.  y = -2/3 x + 9
8.  y = 5x - 19
9.  bases are parallel;  slopes are both 1/3
     sides are not parallel;  -4/3 and undefined slope
     legs are congruent;  both have a length of 5
10.  (2a, 0)
11.  A  (r, 0)    B (r, r)
12.  C  (j, 0)    D  (0, j radical 3)
13.  slopes of two lines from midpoints are perpendicular
       3 midpoints are  (0, g),  (f, 0),  and (f, g)
14.  midpoints are both the same for the diagonals;  midpoint is (a+b)/2,  c/2
15.  all four sides are congruent ;  use distance formula to show that sides are all radical 18;
       two sides are perpendicular;  slopes are 1 and -1

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