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3-D Shapes Concept 52 Polyhedron 3-D Shapes Concept 52 Polyhedron

3-D Shapes Concept 52 Polyhedron - PowerPoint Presentation

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3-D Shapes Concept 52 Polyhedron - PPT Presentation

Solid Convex Concave Regular Cylinder Prism Cone Pyramid Sphere Polyhedron a solid figure with many plane faces Solid a 3D shape that encloses space but is not made up of all polygon sides ID: 1044685

faces solid vertices volume solid faces volume vertices polyhedron edges prism shape triangular cross find triangle section rectangular 480

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1. 3-D ShapesConcept 52

2. PolyhedronSolidConvexConcaveRegularCylinderPrismConePyramidSphere

3. Polyhedron: a solid figure with many plane faces

4. Solid: a 3-D shape that encloses space but is not made up of all polygon sides.

5. Convex: all vertices of the solid push outward. Concave: one or more vertices of the solid are pushed inward.

6. Regular: a polyhedron with all the same regular polygons.

7. Prism: a polyhedron made up of two parallel bases connected by rectangles. Rectangular prismTriangular Prism Pentagonal Prism

8. Pyramid:

9. Cylinder:

10. Cone:

11. Sphere:

12. 1. 2. 3. 4.Determine whether each solid is a polyhedron or solid. Then draw a net for each if possible. ConePentagonal PrismSphereTriangular Prism

13. Given the net of a solid. Draw the solid and give its name.5.6.7.Triangular PrismHexagonal PyramidCube

14. Parts of Solids and Cross SectionConcept 53

15. Parts of a 3D Shape!Only cut this solid lineFold on all dotted lines.(fold both directions)

16. Triangular PyramidBase: a polygonBase:Edge: a segment where two faces come together.EdgeVertex: a point where three or more edges come together.Face: a set of polygons that make up the other surfaces of a polyhedron. (lateral faces)VertexVertexVertexVertexEdgeEdgeEdgeEdgeEdgeFaceFaceFace

17. Then identify the solid. If it is a polyhedron, name the faces, edges, and vertices.9.10.Faces:Edges:Vertices:Circle S (B)nonePoint RFaces:Edges:Vertices:Pentagons: PWXYX and QRSUV, Quadrilaterals: QVXW, UVXY, USZY, PRSZ, PRXW  Points: P,W,X,Y, Z,Q,R,S,U,V

18. Then identify the solid. If it is a polyhedron, name the faces, edges, and vertices.11.Faces:Edges:Vertices:Triangles: ABC and DEF, Quadrilaterals: ABED, BCFE, ACFD  Points: A, B, C, D, E, F

19. Cross Section: a surface or shape that is or would be exposed by making a straight cut through something, especially at right angles to an axis. Sketch the cross section from a vertical slice of each figure.1.2.3.

20. Describe each cross section.4.5.6.7.8.SquareRectangleTriangleOvalRectangle

21.

22. Euler’s TheoremConcept 54

23. There are 11 polyhedrons located around the room at each group of desks. Use each one to fill in a row of the table. If the shape has a name you know write it in the first column, otherwise just write what it is made up of. Ex. (2 triangles and 3 rectangles)

24. Name or what shapes make it.# of Faces# of Vertices# of Edges123456789101112

25. Euler’s TheoremF + V = E + 2

26. Examples: 8 faces and 18 edges21 edges and 14 vertices      

27. 12 pentagon faces 8 triangle faces1 hexagon and 6 triangle faces                 

28. 20 triangle faces12 pentagon and 20 hexagon faces          

29. 2 hexagons and 6 rectangles     

30. Volume of PrismsConcept 55

31. Rectangular PrismTriangular Prism TrapezoidalPrismOtherPrismsVolume = Base Area height V = B h 

32. Rectangular PrismsV = B h V = (9 5) 4 V = 180  V = B h V = (6 11) 2 V = 132  

33. Triangular PrismV = B h V = (5) 14 V = 350  V = B h V = ( ) 9 V = 108  

34. Trapezoidal PrismV = B h V = () 7 V = 77  V = () 7 V = B h V = () 15 V = 510  V = () 15 

35. Other PrismsV = B h V = () 7 V = 655.2  V = () 7 V = B h V = () 4 V = 8360  V = () 4 

36. Find the volume of the right prism.V = B h V = ()  V = 576  V = B h V = ()  V =  V = B h V = ()  V = 18  

37. Find the missing side length given the Volume, V of each solid. 4. V = 480 cm25. V = 120 in26. V = 180 cm2V = B h 480 = ()  480 = 96x 5 cm = xV = B h 120 = ()  12 in = x120 = 10xV = B h 180 = () 4 18 = x + 12180 =10(x +12)6 cm = x

38. Volume of PyramidsConcept 56

39. Volume of PyramidsSquarePyramid TriangularPyramidOtherPyramids

40. Volume of PyramidsVolume = Base Area height  V = B h  

41. Square Pyramids2.1.V = B h  V = 8  V =  V = B h  V = 7  V =  

42. Triangular Pyramids3.4.V = B h  V = 7  V =  V = B h  V =  V =  

43. Other Pyramids5.6.V = B h  V =  V =  V = B h  V =  V =  

44. Find the volume of each pyramid. Round to the nearest tenth if necessary.V = B h  V =  V =  V = B h  V =  V =  V = B h  V =  V =       

45. V = B h  V =  V =  

46. Volume of Cylinders, cones, and spheresConcepts 57 - 59

47.

48.

49.

50.

51.

52. Find the volume of each.1. 2. 3.

53. 4. 5. 6.

54. 7. hemisphere: area of 8. 9.great circle ≈ 4π ft2