Presentation is loading. Please wait.

Presentation is loading. Please wait.

Area of a Parallelogram Area of a Triangle Circumference & Area of a Circle.

Similar presentations


Presentation on theme: "Area of a Parallelogram Area of a Triangle Circumference & Area of a Circle."— Presentation transcript:

1

2

3 Area of a Parallelogram

4 Area of a Triangle

5 Circumference & Area of a Circle

6 Solid Figures

7 Surface Area of a Prism

8 Volume of a Prism

9 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500

10 What is the formula for the area of a parallelogram?

11 Area = base x height (A = b x h)

12 What is the area of this parallelogram? 8 in. 6 in.

13 Area = base x height A = 8 x 6 A = 48 in. 2

14 The height of a parallelogram has to form what type of line with the base?

15 The height forms a perpendicular line with the base.

16 What is the area of this parallelogram? 10 cm. 5 cm. 7 cm.

17 Area = base x height A = 10 x 5 A = 50 cm. 2

18 What is the height of the parallelogram? h = ? 20 in. A = 180 in. 2

19 Area = base x height A = b x h 180 = 20 x h 180 ÷ 20 = h height = 9 in.

20 What is the formula for the area of a triangle?

21 x base x height

22 Find the area of the triangle shown below 3 m 11 m

23 x base x height X 11 x 3 A = 16.5 m 2

24 Find the area of the triangle shown below 16 cm 8 cm

25 x base x height A = 64 cm 2

26 Find the total area of the figure below 6 cm 10 cm5 cm

27 1. Area of rectangle A = l x w A = 10 x 6 A = 60 cm 2 3.Add ALL areas together to get total area 60 + 15 = 75 cm 2

28 What is the height of the triangle below? h = ? Area = 50 in. 2 20 in.

29 50 = 10 x h h = 50 ÷ 10 h = 5 in.

30 What is the formula for circumference of a circle ?

31 Circumference = 2πr (C = 2πr) Or Circumference = π diameter (C = πd)

32 What is the formula for area of a circle?

33 Area = πr 2 (A = πr 2 )

34 Find the circumference of the circle below 5 in.

35 Circumference = πd C = 3.14 x 10 C= 31.4 in.

36 Find the area of the circle below 12 ft.

37 radius = 12 ÷ 2 r = 6 ft. Area = πr 2 A = 3.14 x 6 2 A = 113.04 ft. 2

38 Find the circumference of the tree trunk 4 ft.

39 Circumference = πd C = 3.14 x 4 C = 12.56 ft.

40 Classify the following solids

41 Cylinder Rectangular Prism Triangular Prism

42 Classify the following solids

43 Cone Square pyramid Sphere

44 Count the number of faces, edges, and vertices of the figure below:

45 Faces: 5 Edges: 8 Vertices: 5

46 Count the number of faces, edges, and vertices of the figure below :

47 Faces: 6 Edges: 12 Vertices: 8

48 Count the number of faces, edges, and vertices of the figure below:

49 Faces: 5 Edges: 9 Vertices: 6

50 Find the surface area of the rectangular prism:

51 (front or back) 4 x 6 = 24 cm 2 (left or right) 4 x 3 = 12 cm 2 (top or bottom) 6 x 3 = 18 cm 2 24 + 24 + 12 + 12 + 18 + 18 = 108 cm 2

52 Find the surface area of the cube : 4 in. 4 in

53 (front or back) 4 x 4 = 16 in. 2 (left or right) 4 x 4 = 16 in. 2 (top or bottom) 4 x 4 = 16 in. 2 16 + 16 + 16 + 16 + 16 + 16 = 96 in. 2

54 You want to make a toy box that is 2 feet by 1 foot by 3 feet. A sheet of plywood is 4 feet by 8 feet. Do you have enough wood to construct the box? Plywood 4 ft. 8 ft. 2 ft. 3 ft. 1 ft. Toy box

55 2 ft. 1 ft. 3 ft. Toy box surface area: 2 x 1 = 2 ft. 2 2 x 3 = 6 ft. 2 1 x 3 = 3 ft. 2 2 + 2 + 6 + 6 + 3 + 3 = 22 ft. 2 Area of plywood: A = length x width A = 8 x 4 A = 32 ft. 2 4 ft. 8 ft. Yes, you will have enough wood, because 32 ft. 2 is greater than 22 ft. 2

56 You want to wrap a gift that is 6 inches by 10 inches by 4 inches. The label on the wrapping paper says it covers a total area of 250 in. 2 Do you have enough wrapping paper to cover the entire box ? 10 in. 6 in. 4 in.

57 6 x 10 = 60 in. 2 6 x 4 = 24 in. 2 10 x 4 = 40 in. 2 60 + 60 + 24 + 24 + 40 + 40 = 248 in. 2 Yes, you do have enough wrapping paper, because you have enough paper to cover 250 in. 2 and the gift is only 248 in. 2 (248 in. 2 is less than 250 in. 2 )

58 Find the surface area of the figure below: 6 ft. 4 ft. 3 ft.

59 4 ft. 6 ft. 3 ft. 3 x 6 = 18 ft. 2 3 x 4 = 12 ft. 2 4 x 6 = 24 ft. 2 18 + 18 + 12 + 12 + 24 + 24 = 108 ft. 2

60 What is the formula for finding the volume of a solid?

61 Volume = length x width x height (V = l x w x h)

62 Find the volume of the rectangular prism below: 8 in. 2 in. 6 in.

63 Volume = length x width x height V = 6 x 8 x 2 V = 96 in. 3

64 Find the volume of the rectangular prism below:

65 Volume = length x width x height V = 6 x 3 x 4 V = 72 cm. 3

66 You have a cube whose dimensions for length, width, and height are all the same. If the volume of the cube is 125 in. 3, what are the dimensions for length, width, and height?

67 Volume = length x width x height 125 in. 3 = 5 in. x 5 in. x 5 in. Length = 5 inches Width = 5 inches Height = 5 inches

68 A pool at an aquarium is a rectangular prism that is 30 meters wide and 12 meters deep. The volume of the pool is 21, 600 cubic meters. How long is the pool? 30 m 12 m ?

69 Volume = length x width x height 21,600 = L x 30 x 12 21,600 = L x 360 L = 21,600 ÷ 360 L = 60 m The length of the pool is 60 meters.

70

71

72

73

74

75

76

77 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140


Download ppt "Area of a Parallelogram Area of a Triangle Circumference & Area of a Circle."

Similar presentations


Ads by Google