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Published byVernon Burke Modified over 9 years ago
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Take out your calculator and notebook. Take a worksheet from the bookshelf List any solids that you already know. What does “3-D” mean? Draw a 3-D figure DO NOW
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INTRO TO SOLIDS
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Visualize objects and relationships in two and three dimensions Introduce geometric solids Visualize nets of solids Use problem solving skills TODAY’S OBJECTIVES
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AKA solid geometry Space is the set of all points. Cannot be contained in a flat surface. SPACE GEOMETRY
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Cylinder Prism Cone Pyramid Sphere FIVE TYPES OF SOLIDS
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Polyhedron—a solid formed by polygons that enclose a single region of space Named after their base. Faces—the flat polygonal surfaces of a polyhedron Edge—a segment where two faces intersect Vertex—the point of intersection of three or more edges POLYHEDRON
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Prism—special type of polyhedron Has two faces called bases that are congruent Other faces are called lateral faces PRISM
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Pyramid—a polyhedron with only one base PYRAMID
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Cylinder—two circular bases with a curved surface CYLINDER
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Cone—one base with a curved surface CONE
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Sphere—the set of all points in space at a given distance from a given point. 3-D circle SPHERE
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A pattern that you can cut and fold to make a model of a solid shape NET
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Visualize objects and relationships in two and three dimensions Introduce geometric solids Visualize nets of solids Use problem solving skills TODAY’S OBJECTIVES
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EXIT SLIP
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VOLUME OF PRISMS AND CYLINDERS
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Discover formulas for finding the volumes of prisms and cylinders Use problem solving skills TODAY’S OBJECTIVES
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Volume—the measure of the amount of space contained in a solid. The volume of the object is the number of unit cubes that completely fill the space within the object. VOLUME
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Find the volume of each rectangular prism INVESTIGATION
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Find the volume VOLUME
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Rectangular Prism Volume Conjecture—If B is the area of the base of a right rectangular prism and h is the height of the solid, then the formula for the volume is _____ V=Bh RECTANGULAR PRISM VOLUME CONJECTURE
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Find the volume VOLUME
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Find the volume VOLUME
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Find the volume VOLUME
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Find the volume VOLUME
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Discover formulas for finding the volumes of prisms and cylinders Use problem solving skills TODAY’S OBJECTIVES
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1.Find the volume to the right 2.Find the volume of the cylinder if the radius of the circular base is 4cm and the height is 7cm. EXIT SLIP
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