WARMUPS

1
WARMUPS

• Solve (3 x 2)3 (6 3)2
• Solve 95 43
• Solve 9 apples 4 apples 3 oranges 2
  oranges
• Draw a cat

2
HOMEWORK PAGE 365 DO 1-23 30

• IF YOU CAN DO THESE YOU ARE A SUPER MATHEMATICIAN

3
Triangles
COURSE 2 LESSON 7-4
Pages 365367 Exercises
21. right 22. 64 180 (93 31) 5656
60 116180 116 64 23. isosceles
triangle 24. equilateral, isosceles 25. equilatera
l, isosceles 26. scalene 27. isosceles 28. isoscel
es 29. scalene
1. isosceles 2. scalene 3. equilateral,
isosceles 4. isosceles 5. isosceles 6. scalene 7.
obtuse 8. acute 9. right 10. obtuse
11. acute 12. right 13. 80 14. 64 15. 40 16. 38
17. 93 18. 60 19. acute 20. right
7-4
4
Triangles
COURSE 2 LESSON 7-4
38. 1.16 39. 1.37 40. 1.55 41. 1.75
42. 1.6 43. 0.4375 44. 0.83 45. 1.6
30. a. 90 b. complementary c. Yes the sum of
the measures of the angles of a triangle is
180, and if one of the angles measures 90,
the other two measures must add up to
90. 31. a. They have the same measure. b.
They measure 60.
32. 6 in. two sides have to have the same
measure, and sides of length 2 in., 2 in., and 6
in. will not form a triangle. 33. 27 34. B 35. G 3
6. C 37. 2 a. x 180 90 36 b. x
54 1 one correct answer
7-4
5
Triangles
COURSE 2 LESSON 7-4
Pages 365367 Exercises
21. right 22. 64 180 (93 31) 5656
60 116180 116 64 23. isosceles
triangle 24. equilateral, isosceles 25. equilatera
l, isosceles 26. scalene 27. isosceles 28. isoscel
es 29. scalene
1. isosceles 2. scalene 3. equilateral,
isosceles 4. isosceles 5. isosceles 6. scalene 7.
obtuse 8. acute 9. right 10. obtuse
11. acute 12. right 13. 80 14. 64 15. 40 16. 38
17. 93 18. 60 19. acute 20. right
7-4
6
Triangles
COURSE 2 LESSON 7-4
38. 1.16 39. 1.37 40. 1.55 41. 1.75
42. 1.6 43. 0.4375 44. 0.83 45. 1.6
30. a. 90 b. complementary c. Yes the sum of
the measures of the angles of a triangle is
180, and if one of the angles measures 90,
the other two measures must add up to
90. 31. a. They have the same measure. b.
They measure 60.
32. 6 in. two sides have to have the same
measure, and sides of length 2 in., 2 in., and 6
in. will not form a triangle. 33. 27 34. B 35. G 3
6. C 37. 2 a. x 180 90 36 b. x
54 1 one correct answer
7-4
7
POLYGONS

• CHAPTER 6-5

8
POLYGON

• A POLYGON IS A CLOSED FIGURE FORMED BY JOINING
  THREE OR MORE LINE SEGMENTS IN A PLANE AT THEIR
  ENDPOINTS

9
POLYGONS

• EACH LINE SEGMENT IS CALLED THE SIDE OF A POLYGON

10
POLYGONS

• EACH LINE SEGMENT IS CALLED THE SIDE OF A POLYGON

11
POLYGONS

• THE POINTS WHERE TWO SIDES MEET IS CALLED A VERTEX

12
POLYGONS

• THE POINTS WHERE TWO SIDES MEET IS CALLED A VERTEX

13
POLYGONS

• A DIAGONAL IS A LINE SEGMENT THAT JOINS TWO
  NONCONSECUTIVE VERTICES

14
POLYGONS

• A DIAGONAL IS A LINE SEGMENT THAT JOINS TWO
  NONCONSECUTIVE VERTICES

15
NAMING POLYGONS
16
REGULAR POLYGON

• A REGULAR POLYGON HAS ALL SIDES WITH THE SAME
  LENGTH AND THE ANGLES ARE THE SAME MEASURE

17
ANGLES IN A POLYGON

• THE SUM OF THE ANGLES OF A POLYGON EQUALS THE
  NUMBER OF SIDES LESS TWO TIMES 180 DEGREES

18
ANGLES IN A POLYGON

• THE SUM OF THE ANGLES OF A POLYGON EQUALS THE
  NUMBER OF SIDES LESS TWO TIMES 180 DEGREES
• FORMULA WRITE THIS DOWN
• (N - 2)( 180 )
• N IS THE NUMBER OF SIDES

19
ANGLES IN A POLYGON

• THE SUM OF THE ANGLES OF A POLYGON EQUALS THE
  NUMBER OF SIDES LESS TWO TIMES 180 DEGREES
• FORMULA WRITE THIS DOWN
• (N - 2)( 180 )
• N IS THE NUMBER OF SIDES

20
ANGLES IN A POLYGON

• FORMULA
• (N - 2)( 180 )
• N IS THE NUMBER OF SIDES
• N 4 (FOUR SIDES)
• (N - 2)( 180 )
• (4 - 2)(180)
• (2)(180)
• 360 DEGREES

21
ANGLES IN A POLYGON

• FORMULA
• (N - 2)( 180 )
• N IS THE NUMBER OF SIDES
• N 4 (FOUR SIDES)
• (N - 2)( 180 )
• (4 - 2)(180)
• (2)(180)
• 360 DEGREES

22
ANGLES IN A POLYGON

• FORMULA
• (N - 2)( 180 )
• N IS THE NUMBER OF SIDES
• N 4 (FOUR SIDES)
• (N - 2)( 180 )
• (4 - 2)(180)
• (2)(180)
• 360 DEGREES

90 90
90 90
23
FIND THE ANGLES IN THIS POLYGON

• FORMULA
• (N - 2)( 180 )
• N IS THE NUMBER OF SIDES
• N 6 (SIX SIDES)
• (6 - 2)( 180 )
• (6 - 2)(180)
• (4)(180)
• 720 DEGREES

24
QUADRILATERALS

• CHAPTER 6-5

25
POLYGONS -SQUARE

• FOUR SIDES
• ALL SIDES EQUAL IN LENGTH
• ALL ANGLES 90 DEGREES
• ADJACENT SIDES PERPENCIDULAR
• DIAGONALS EQUAL IN LENGTH

26
POLYGONS - RECTANGLE

• FOUR SIDES
• PERPENDICULAR SIDES
• DIAGONALS EQUAL
• OPPOSITE SIDES EQUAL IN LENGTH

27
POLYGONS - PARALLELOGRAM

• FOUR SIDES
• TWO PAIRS OF PARALLEL SIDES
• OPPOSITE SIDES ARE EQUAL IN LENGTH
• OPPOSITE ANGLES ARE EQUAL
• ALL SQUARES AND RECTANGLES ARE PARALLELOGRAMS

28
POLYGONS - RHOMBUS

• FOUR SIDES
• ALL SIDES EQUAL IN LENGTH
• OPPOSITE ANGLES ARE EQUAL
• ALL SQUARES ARE RHOMBUS

29
POLYGONS - TRAPEZOID

• FOUR SIDES
• AT LEAST ONE PAIR OF PARALLEL SIDES

30
HOMEWORK PAGE 371-372 DO 1-3 11-21

• IF YOU CAN DO THESE YOU ARE A SUPER MATHEMATICIAN