1. 2nd QMondayTuesdayWednesdayThursdayFriday 10/12 Staff Collaboration Ch 4-1Ch 4-2Rev 1,2Ch 4-3Rev 3 10/19 Ch 4-4Rev 4Ch 4-5Rev 5Ch 4-6 10/26 Staff Collaboration Rev 6Ch 4-7Rev 7Ch 4 ReviewGeo Ch 4 Test

2. Triangles and Angles Chapter 4-1 DNA

3. Triangles (classified by side length) Equilateral  All three sides are  Isosceles  Two sides are  Scalene  No sides are 

4. Triangles (classified by angle measure) Obtuse  Contains one obtuse  Right  Contains one right  Acute  Contains 3 acute  s Equiangular  All 3  s are 

5. A.A B.B C.C D.D Lesson 1 CYP1 A.acute B.equiangular C.obtuse D.right A. ARCHITECTURE The frame of this window design is made up of many triangles. Classify ΔABC.

6. A.A B.B C.C D.D Lesson 1 CYP1 A.acute B.equiangular C.obtuse D.right B. ARCHITECTURE The frame of this window design is made up of many triangles. Classify ΔACD.

7. A.A B.B C.C D.D Lesson 1 CYP1 A.acute B.equiangular C.obtuse D.right C. ARCHITECTURE The frame of this window design is made up of many triangles. Classify ΔADE.

8. Lesson 1 CYP2 1.A 2.B 3.C 4.D A.ΔABC and ΔABD B.ΔADE and ΔAEB C.ΔBED and ΔACB D.ΔACD and ΔACB A. Which of the following triangles are isosceles?

9. Lesson 1 CYP2 1.A 2.B 3.C 4.D A.ΔABE B.ΔACE C.ΔADE D.ΔABD B. Which of the following triangles is scalene?

10. Lesson 1 Ex3 Find Missing Values ALGEBRA Find d and the measure of each side of equilateral triangle KLM if KL = d + 2, LM = 12 – d, and KM = 4d – 13. Since ΔKLM is equilateral, each side has the same length. So KL = KM. Substitution Subtr. Prop = Add. Prop = Div. Prop = 5 = d 2 = 3d – 13 =

11. Lesson 1 Ex3 Find Missing Values 4(5) – 13 20 – 13 7 (5) + 2 7 =12 – (5) = 7

12. 1.A 2.B 3.C 4.D Lesson 1 CYP3 A.x = 10 and all sides are 3. B.x = 6 and all sides are 13. C.x = 3 and all sides are 10. D.x = 3 and all sides are 16. ALGEBRA Find x and the measure of each side of equilateral triangle ABC if AB = 6x – 8, BC = 7 + x, and AC = 13 – x.

13. Lesson 1 Ex4 Use the Distance Formula COORDINATE GEOMETRY Find the measures of the sides of ΔRTS. Classify the triangle by sides. Scalene!

14. A.A B.B C.C D.D Lesson 1 CYP4 Find the measures of the sides of ΔABC. Classify the triangle by sides. A.scalene B.isosceles C.equilateral D.cannot be determined

15. Homework Chapter 4-1 Pg 205,Pg 205, 3-8, 13-20, 37, 38, & 49 – 51.