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Area of a Parallelogram

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Area of a Triangle

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Circumference & Area of a Circle

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Solid Figures

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Surface Area of a Prism

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Volume of a Prism

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What is the formula for the area of a parallelogram?

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

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

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

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

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The height forms a perpendicular line with the base.

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

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

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

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

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What is the formula for the area of a triangle?

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x base x height

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

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

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

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x base x height A = 64 cm 2

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

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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

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

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50 = 10 x h h = 50 ÷ 10 h = 5 in.

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What is the formula for circumference of a circle ?

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

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What is the formula for area of a circle?

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Area = πr 2 (A = πr 2 )

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Find the circumference of the circle below 5 in.

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

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Find the area of the circle below 12 ft.

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

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Find the circumference of the tree trunk 4 ft.

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

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Classify the following solids

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Cylinder Rectangular Prism Triangular Prism

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Classify the following solids

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Cone Square pyramid Sphere

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

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Faces: 5 Edges: 8 Vertices: 5

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

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Faces: 6 Edges: 12 Vertices: 8

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

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Faces: 5 Edges: 9 Vertices: 6

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Find the surface area of the rectangular prism:

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(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

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

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(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

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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

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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

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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.

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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 )

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

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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

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

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

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

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

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Find the volume of the rectangular prism below:

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

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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?

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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

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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 ?

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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.

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