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October 18, 2016
The Net p. 149 in book
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Rectangual Prism
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Rectangular Pyramid
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Right Cylinder
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Right Circular Cone
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CROSS SECTIONS
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Identify the 3-D figure and state cross sections if cut by a vertical and horizontal plane(click the figure to see the net)
Rectangular PrismVertical: Rectangle
Horizontal: Rectangle
Drag to Reveal
Rectangular PyramidVertical: Triangle
Horizontal: Rectangle
Drag to Reveal
Right Circular ConeVertical: TriangleHorizontal: Circle
Drag to Reveal
Right CylinderVertical: RectangleHorizontal: Circle
Drag to Reveal
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Review of Two‐Dimensional and Three‐Dimensional Figures
A Two‐Dimensional (2D) shape is a shape that only has two dimensions: width and height.
Examples: Squares, Circles, Triangles, etc are two dimensional objects
A Three‐Dimensional (3D) shape is a shape that has three dimensions: width, depth and height.
Examples: Cube, Cylinder, etc are three dimensional objects
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WHAT DID YOU GUESS? If you guessed cone, you are correct!
A cone is solid revolution of a right triangle around one of its legs.
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***********USE YOUR PHONE TO LOOK UP IMPORTANT FORMULAS BUT REMEMBER THEY WILL NOT BE GIVEN TO YOU ON THE TNREADY TEST!
p. 219220 : 1 7
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p. 220: 16
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p. 215Lesson 4.2
Volume of a Cylinder: V = r2h
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