We started a new chapter today -- coordinate geometry. We are skipping ahead to chapter 13 and we will return to pick up the other chapters during the next semester.

Our topic today was how to use the distance formula in working with straight sided figures and circles. We used the pythagorean theorem to find the distance formula, and then we also showed how the formula of a circle can be found. We practiced with both types of problems before getting started on the assignment.

Assignment: section 13-1; page 526-527; WE 5-12; 17-25

# Mr. Landers Math Classes @ HHS

descriptions of daily assignments and schedule of events in Mr. Landers' math classes at Hanford High School, Richland, WA

## Thursday, December 14, 2017

### Honors Geometry; 12/14

Our work with inequalities focused on two different triangles today. The inequality theorems between two triangles are known as the Hinge Theorems. We showed how these two theorems work and how to use them to solve various types of drawing examples.

Assignment: section 6-5; page 230; CE 1-8; page 231-232; WE 1-11

Assignment: section 6-5; page 230; CE 1-8; page 231-232; WE 1-11

### Geometry; 12/13

The students turned in their chapter 5 review materials and entry tasks to start the period today. The remainder of the period was spent taking the chapter 5 test.

Assignment: none; extra credit puzzle

Assignment: none; extra credit puzzle

### Honors Geometry; 12/13

Our topic for today involved working with inequalities in one triangle. We went through the triangle inequality theorems to show how the range of side lengths can be determined in a triangle, as well as how to make comparisons between angles and sides in a single triangle. The concept is fairly simple -- the longest side is always opposite the largest angle; the shortest side is always opposite the smallest angle. The students then got started on their homework assignment.

Assignment: section 6-4; page 222-223; WE 10-16, 19

Inequalities in 1 Triangle worksheet

## Tuesday, December 12, 2017

### Geometry; 12/12

We completed our quadrilaterals chart today by filling in the properties of kites that we had worked with yesterday. We then worked through 2 problem types for the test together before getting started on the review sheet. The students had the last half of the period to work on the chapter 5 review. The chapter 5 test is tomorrow.

Assignment: Chapter 5 Review sheet

1. true

2. false

3. false

4. true

5. false

6. angle Q

7. RQ

8. 7.5

9. 3.7

10. trapezoid

11. 6

12. x = 3; DF = 18

13. 92, 88

14. rectangle

15. angle WXY congruent to angle WZY

16. WX parallel to ZY or WZ congruent to XY

17. WX parallel to ZY or WZ congruent to XY

18. ZP congruent to PX

19. statements reasons

XZ segment auxiliary line

XZ congruent to XZ reflexive

angle 1 congruent to angle 2 if lines parallel, AIA congruent

tri. WXZ cong. tri. YZX AAS

WX congruent to ZY CPCTC

WXYZ is parallelogram if one pair of sides both cong. and parallel,

then it is a parallelogram

1. 92, 88

2. 10

3. 2

4. 3

5. 13.4

6. 90

7. angle HEF congruent to angle HGF

8. EF parallel to HG or EH congruent to FG

9. EF parallel to HG or EH congruent to FG

10. I is the midpoint of HF

11. A, 13

12. 24

13. trapezoid

14. median / midsegment

15. isosceles trapezoid

16. 18

17. 80, 80

18. rectangle

19. rhombus

20. isosceles trapezoid

1. 16

2. 17

3. 9

4. 8

5. 2

6. 78

7. 63, 117

8. 72, 108

9. 13

10. 15

11. 65, 115, 115

12. angle B, angle CFE, angle DEF

13. 10, 15

14. 6, 18

15. 12

16. 24, 12

17. JK = 2x; x = 1.2

Assignment: Chapter 5 Review sheet

**Ch. 5 Practice**1. true

2. false

3. false

4. true

5. false

6. angle Q

7. RQ

8. 7.5

9. 3.7

10. trapezoid

11. 6

12. x = 3; DF = 18

13. 92, 88

14. rectangle

15. angle WXY congruent to angle WZY

16. WX parallel to ZY or WZ congruent to XY

17. WX parallel to ZY or WZ congruent to XY

18. ZP congruent to PX

19. statements reasons

XZ segment auxiliary line

XZ congruent to XZ reflexive

angle 1 congruent to angle 2 if lines parallel, AIA congruent

tri. WXZ cong. tri. YZX AAS

WX congruent to ZY CPCTC

WXYZ is parallelogram if one pair of sides both cong. and parallel,

then it is a parallelogram

**Quadrilaterals**1. 92, 88

2. 10

3. 2

4. 3

5. 13.4

6. 90

7. angle HEF congruent to angle HGF

8. EF parallel to HG or EH congruent to FG

9. EF parallel to HG or EH congruent to FG

10. I is the midpoint of HF

11. A, 13

12. 24

13. trapezoid

14. median / midsegment

15. isosceles trapezoid

16. 18

17. 80, 80

18. rectangle

19. rhombus

20. isosceles trapezoid

**Trapezoids**1. 16

2. 17

3. 9

4. 8

5. 2

6. 78

7. 63, 117

8. 72, 108

9. 13

10. 15

11. 65, 115, 115

12. angle B, angle CFE, angle DEF

13. 10, 15

14. 6, 18

15. 12

16. 24, 12

17. JK = 2x; x = 1.2

### Honors Geometry; 12/12

We continued our work with inequalities in geometry today by taking a look at what the phrases are that are used with inequalities. We learned how to write inverses and contrapositives in our lesson today, and went over how to make conclusions from these different types of statements. We also demonstrated how to illustrate an inequality problem with a venn diagram.

Assignment: Section 6-2; pg. 210-212; WE 1-18

Assignment: Section 6-2; pg. 210-212; WE 1-18

## Monday, December 11, 2017

### Geometry; 12/11

We reviewed the various properties of trapezoids today before taking a look at the last quadrilateral we will study --- kites. We went over the 2-3 properties of kites and then how to use these properties in calculations. The students spent the last part of the period working on their assignment.

Assignment: Kites worksheet

Assignment: Kites worksheet

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