WARMUPS

1
WARMUPS

• THE STREETS OF MARYS TOWN FORM A RIGHT TRIANGLE.
  IF ONE LEG IS 8 KM LONG, ANOTHER LEG IS 6 KM
  LONG. WHAT IS THE DISTANCE OF THE LONGER STREET?
• THE AVERAGE ANNUAL SNOWFALL IN KODY, WYOMING IS
  26 INCHES. THIS WAS THE AVERAGE ANNUAL SNOWFALL
  FOR 36 CONSECUTIVE YEARS. WHAT IS THE TOTAL
  SNOWFALL IN INCHES FOR THESE 36 YEARS?
• DRAW A CHICKEN

2
HOMEWORK

• PAGE 439 1-27
• IF YOU CAN DO THESE YOU ARE A SUPER MATHEMATICIAN

3
Three-Dimensional Figures
COURSE 2 LESSON 8-7
Pages 439440 Exercises
1. rectangle rectangular prism 2. hexagon
hexagonal prism 3. pentagon pentagonal
prism 4. square cube 5. triangle triangular
prism 6. trapezoid trapezoidal
prism 7. cylinder 8. cone
15.
9. sphere 10. hexagonal pyramid 11. cone 12. re
ctangular pyramid 13.
16.
17.
14.
8-7
4
Three-Dimensional Figures
COURSE 2 LESSON 8-7
8-7
5
Three-Dimensional Figures
COURSE 2 LESSON 8-7
Name each figure. 1. 2. 3. Draw a
square pyramid.
hexagonal prism
cylinder
8-7
6
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
(For help, go to Lesson 8-2.)
Find the area of each triangle. 1. 2. 3.
8-8
7
SURFACE AREA OF PRISMS AND CYLINDERS

• CHAPTER 14-2

8
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
Draw a net for the square prism.
8-8
9
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
Find the surface area of the prism.
Then find the total area of the five faces.
The surface area of the triangular prism is 840
cm2.
8-8
10
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
Find the surface area of the cylinder. Round to
the nearest tenth.
8-8
11
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
(continued)
The surface area of the cylinder is about 94.2
cm2.
8-8
12
SURFACE AREA OF PRISMS

• CHAPTER 14-2

13
SURFACE AREA OF A PRISM - WHAT IS IT?

• THE SURFACE AREA OF A PRISM IS THE SUM OF THE
  AREAS OF THE BASES AND ALL FACES OF THE PRISM.
• SURFACE AREA IS EXPRESSED IN SQUARE UNITS.

14
REMEMBER THIS

• FIND THE SURFACE AREA OF THE RECTANGULAR PRISM?

15

• FIND THE SURFACE AREA OF THE RECTANGULAR PRISM?
• 1. FIND THE AREA OF BOTH BASES (THE TOP ONE AND
  THE BOTTOM)

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SURFACE AREA OF RECTANGULAR PRISM
8 IN
10 IN
14 IN
17
SURFACE AREA OF RECTANGULAR PRISM
8 IN
10 IN
14 IN
664 IN 2
18
SURFACE AREA OF TRIANGULAR PRISM
3 FT
8 FT
4 FT
19
SURFACE AREA OF TRIANGULAR PRISM
3 FT
8 FT
108 FT SQ
4 FT
20
SURFACE AREA OF CUBE
4 FT
4 FT
4 FT
21
SURFACE AREA OF CUBE
4 FT
4 FT
4 FT
96 FT SQ
22
SURFACE AREA OF CYLINDERS
23
SURFACE AREA OF CYLINDER
CIRCLE
24
SURFACE AREA OF CYLINDER
CIRCLE
CIRCLE
25
SURFACE AREA OF CYLINDER
CIRCLE
RECTANGLE
CIRCLE
26
SURFACE AREA OF CYLINDER
CIRCLE
27
SURFACE AREA OF CYLINDER
CIRCLE
RECTANGLE
28
SURFACE AREA OF CYLINDER
CIRCLE
RECTANGLE
CIRCLE
29
SURFACE AREA OF CYLINDER
TOTAL AREA 2 x 3.14 x R2

• FIND THE SURFACE AREA OF
• THE TOP CIRCLE
• A 3.14 x R2
• FIND THE SURFACE AREA OF THE BOTTOM CIRCLE
• A 3.14 x R2

30
SURFACE AREA OF CYLINDER

• FIND THE SURFACE AREA OF
• THE MIDDLE
• A 2 x 3.14 x R x H

31
FIND THE AREA OF A THIS CYLINDER
7 CM
30 CM
32
FIND THE AREA OF A THIS CYLINDER
7 CM
FIND AREA OF END A 3.14 x R2 A 3.14 x
72 A 3.14 x 49 A 153.86 CM2
33
FIND THE AREA OF A THIS CYLINDER
7 CM
FIND AREA OF END A 3.14 x R2 A 3.14 x
72 A 3.14 x 49 A 153.86 CM2
34
FIND THE AREA OF A THIS CYLINDER
7 CM
END AREA 2 TIMES 153.86 CM2 BOTH ENDS ARE
307.72 CM2
35
FIND THE SURFACE AREA OF A THIS CYLINDER
7 CM
30 CM
MIDDLE AREA 2 x 3.14 x r x H MIDDLE AREA 2 x
3.14 x 7 x 30 MIDDLE AREA 1318.8 CM2
36
FIND THE SSURFACE AREA OF A THIS CYLINDER
7 CM
30 CM
MIDDLE AREA 1318.8 CM2 BOTH ENDS
307.72 CM2 TOTAL AREA 1626.52 CM2
37
SURFACE AREA OF CYLINDER
6 FT
20 FT
38
SURFACE AREA OF CYLINDER
6 FT
20 FT
434 FT SQ
39
4 STEP PROBLEM SOLVING

• READ WRITE THE PROBLEM
• ANALYZE THE PROBLEM
• SOLVE THE PROBLEM
• CHECK YOUR ANSWER

40
HOMEWORK

• PAGE 445 1 TO 17
• IF YOU CAN DO THESE YOU ARE A SUPER MATHEMATICIAN

41
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
Pages 444447 Exercises
14. Nets may vary. Samples are given. 1.
4.
2.

• 5. 264 m2
• 6. 148 in.2
• 7. 188 m2
• 8. 216 in.2
• 9. 768 cm2
• 10. 108 ft2
• 11. 1,332 m2

3.
8-8
42
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
8-8
43
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
8-8
44
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8

• 34. 528 in.2
• 35. 3,024 in.2
• 36. 990 ft2
• 37. 298.3 m2
• 38. 27 triangles
• 39. C
• 40. G
• 41. B
• 42. 2 It quadruples the surface area.
• A1 6 52 150
• A2 6(10)2 600

42. (continued) 1 correct response with no
explanation 43.
46. RS, SU, TU, ST, or RT 47. TS 48. OR, OS,
OT, OU 49. TOU, UOS, SOR, or
ROT
44.
45.
8-8
45
Surface Area of Prisms and Cylinders
COURSE 2 LESSON 8-8
1. Draw a net for a triangular prism.
Find the surface area of each. Round
to the nearest tenth. 2. rectangular prism 12
cm by 8 cm by 9 cm 3. cylinder radius 6
cm, height 10 cm
552 cm2
603.2 cm2
8-8
46
HOMEWORK

• PAGE 548 EXERCISE DO 1 TO 12.