Obj. 25 Properties of Polygons November 25, 2013
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Practice: Khan Academy Angles of a Polygon and IXL.com Polygon Vocabulary. IXL.com’s Interior and Exterior Angles of Polygons is also useful.
Unit 5 Test Review Solutions (Reg. and PAP) November 21, 2013
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Typos:
#11: m∠C=(2x+17)°
#13: side should be 4x−6
Obj. 24 Special Right Triangles November 15, 2013
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I think it can be useful to see that a 454590 triangle is half of as square and a 306090 triangle is half of an equilateral triangle, so while I’m not expecting you to make your notes look like this, I thought you might find this layout helpful:
Practice: Khan Academy Special Right Triangles or IXL.com Special Right Triangles
Obj. 23 Triangle Theorems November 14, 2013
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Practice: IXL Triangle Midsegments, AngleSide Relationships in Triangles, and Khan Academy Triangle Inequality Theorem
Obj. 22 Triangle Segments November 12, 2013
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Practice: IXL Identify Medians, Altitudes, and Bisectors and Khan Academy Multiplying Fractions
Obj. 21 Perpendicular and Angle Bisectors November 11, 2013
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Practice: IXL Perpendicular Bisector Theorem
Reg. Geometry Unit 4 Test Review Solutions November 5, 2013
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Solutions
1. right isosceles  2. equiangular equilateral  
3. 
4.  
5. There is a typo on this problem. Replace the 7x with 8x. 
6.  
7.  8. base angles: vertex angle: B 

9. 
10. and 

11. A  12. C  
13. B  14.  
15.

16.  
17. Statement 1 should read . Reason 4: Vertical angles Reason 5: AAS 

18. The Given statement should read and bisect each other.


19. Reason 4: ASA Reason 5: CPCTC 

20. If we prove ΔADB and ΔCDB are congruent, then we can use CPCTC to prove the sides congruent.


21.


22. To prove ΔABC is right isosceles, prove the sides congruent and the angles perpendicular. Sides: Slopes: AB: BC: AC: Therefore, , and ΔABC is isosceles. The product of the slopes is 1, so the lines are perpendicular. Therefore, ∠ACB is right. 
PAP Unit 4 Test Review Solutions November 5, 2013
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Solutions
1.  2.  
3. 
4.  
5. There is a typo on this problem. Replace the 7x with 8x. 
6.  
7.  8. base angles: vertex angle: B 

9. 
10. and 

11. A  12. C  
13. B  14.  
15.

16.  
17. Statement 1 should read . Reason 4: Vertical angles Reason 5: AAS 

18. The Given statement should read and bisect each other.


19. Reason 4: ASA Reason 5: CPCTC 

20. If we prove ΔAEC and ΔDEB are congruent, then we can use CPCTC to prove the sides congruent.


21.


22. To prove ΔABC is right isosceles, prove the sides congruent and the angles perpendicular. Sides: Therefore, , and ΔABC is isosceles. Slopes: AC: BC: The product of the slopes is 1, so the lines are perpendicular. Therefore, ∠ACB is right. 
Obj. 20 Coordinate Proof November 1, 2013
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Homework: IXL Distance Formula