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Published byGraziano Viviani Modified over 5 years ago
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Bell Ringer Welcome Back from Spring break!!! List 4 fun things you did over the break ( 1 in each box). If you didn’t go anywhere, you can list things like sleep, relax, etc!! Those sound fun to me too!!
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Let’s Take a Look at Your Test
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What’s Coming Up This Week
Academic Sessions Project – DUE WEDNESDAY
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Section 12.1: 3D Figures R drive > Key > March 30_April 3 > 3_30__12.1 Three Dimensional Figures File > Save As > P drive > Math > March 30_April 3 > 3_30__12.1 Three Dimensional Figures
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Vocabulary 2 Dimensional Figure (2D) – Has 2 dimensions (length and width) Plane – A 2D flat surface that extends in all directions
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Notes There are different ways that planes may be related: (1) Intersect in a Line (2)Intersect in a Point (3) No intersection
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Vocabulary 3 Dimensional Figure (3D) – has 3 dimensions (length, width, and depth) Solids – 3D figures formed by intersecting planes Polygon – A shape with straight sides Polyhedron – A solid with flat surfaces that are polygons
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Vocabulary
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Vocabulary Prism – A polyhedron with two parallel, congruent faces called bases that are polygons. Base- Any two parallel congruent faces Pyramid – A polyhedron with one base that is any polygon. The other faces are triangles
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Prisms and pyramids are named by the shape of their bases.
Notes Prisms and pyramids are named by the shape of their bases.
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Real World Examples Triangular Prism: (Base is a triangle)
Rectangular Prism: (Base is a rectangle)
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Real World Examples Triangular Pyramid: (Base is a triangle)
Rectangular Pyramid: (Base is a rectangle)
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Vocabulary Cylinder – A 3D figure with congruent, parallel bases that are circles connected with a curved side Cone- Has one circular base and a vertex connected by a curved side
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Example 1 Identify 3D Figures
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Example 2 Identify 3D Figures
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Example 3 Identify 3D figures
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Example 4 Identify 3D Figures
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Homework Section 12.1 #1, 2, 7 - 9
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Homework Section 12.1 #1, 2, 7 - 9
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