Geometry; 9/18

We reviewed today for the chapter 1 test by going over a few sample calculation problems together, as well as finishing up our figure activity from yesterday.  The students were given a study guide and review sheet for the test that will take place on Monday, Sept. 21.

Assignment:  Chapter 1 review sheet and study guide

Geometry Chapter 1 Review Guide answers

Distance and Midpoint Review Problems

1.        See formula in notes

2.      

3.       See formula in notes

4.       (-7.5 , 4.5)

5.          a.               b.   (2 , 3.5)                         c.  (-13, 8)

Segment and Angle Calculation Problems

2.    equations I used:  AB = 4x + 9;  BC = 5x + 2;  AC = 56

                X = 9 ;  AB = 45;  BC = 47

3.  equations I used:  AB = 2(x + 1);  BC = 3x + 1;  AC = 4(x + 2)

                X = 5;  AB = 12;  BC = 16;  AC = 28

4.  equations I used:  AT = 3x + 1;  TL = 15;  AL = 7x + 1

                X =    (3.75) ;  AT =  12.25;  TL = 15

12.  mÐTPS = 37^o ;  mÐRPS = 74^o

13.  mÐRPT = 48^o ;  mÐRPS = 96^o

14.  mÐRPS = 37.5^o ;  mÐTPS = 37.5^o

15.  equations I used:  5x -17  ;  3x – 14    ;    x =   

16.  equations I used:   3x + 36  ;  9x – 14   ;   x =   

17.  equations I used:  ½ x + 24 ;   3x – 46  ;   x = 28

Practice Questions on Definitions and Postulates

1.        ÐTQR

2.       Ray TP

3.       ÐTQR

4.       Ray QT and ray QR

5.       ÐPTQ and ÐQTS

6.       Point R

7.       Point P

8.       Point Q

9.       True

10.   False

11.   True

12.   True

13.   False

14.   True

15.   True

16.   Sometimes

17.   Always

18.   Always

19.   Never

20.   Always