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Chapter 4 Measuring Prisms and Cylinders

Chapter 4 Measuring Prisms and Cylinders. 4.2 Creating Objects 

from Nets. 4.1 Exploring Nets. INVESTIGATE. You and your partner will receive one 3D shape. Name each face of the object Trace each face Connect the faces that you drew Can you cut your drawing out and fold to make that

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Chapter 4 Measuring Prisms and Cylinders

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  1. Chapter 4 Measuring Prisms and Cylinders

  2. 4.2 Creating Objects 

from Nets 4.1 Exploring Nets

  3. INVESTIGATE You and your partner will receive one 3D shape. Name each face of the object Trace each face Connect the faces that you drew Can you cut your drawing out and fold to make that same 3d shape you were given?

  4. What goes where?!?!?!? Net Polyhedron Polyhedron Net

  5. two faces meet _____ vertex edge three or more edges 
meet at a ________ vertex

  6. Name that shape

  7. What shape would this create? Example 1. What shape will this net make?

  8. Example 2. What shape will this net make?

  9. Example 3. What shape will this net make?

  10. Example 4. What shape will this net make?

  11. Example 5. What shape will this net make? icosahedron

  12. Example 6. What does it mean by “right”?

  13. Example 7. Draw the following net of 
this rectangular prism!

  14. Example 8. Predict what shape this will make? **We name our shapes depending on our base shape

  15. Example 9.

  16. Example 10.

  17. Practice Pages 174 - 176 4a* 6* 8* 9 10 11 Pages 180 - 182 #5a* 7 9 10*

  18. Section 4.3 Surface Area of A Right Rectangular Prism

  19. Review 1.

  20. What is area?... What about surface area? With the person next to you, create a Rectangular prism from 10 or less blocks. 1. Determine the surface area in as many different ways as you can think of. RECORD each way. 2. Can you come up with a definition of surface area? INVESTIGATE

  21. How do we find area of square OR rectangle?

  22. Let us create a box Surface Area: Is the addition of ALL AREAS of 
the panels on our box!

  23. Calculate the total 
surface area! Example 1. Reminder! Tip of the day: BE ORGANIZED!!!

  24. Calculate the total 
surface area! Example 2. *Look for similar faces

  25. Example 3. Calculate the total 
surface area!

  26. Example 4. Find the surface area of this cube 3cm **Use what we know about cubes to make your life easier

  27. Practice Pages 186-187 4* 5* 6b*c*7b 9 11 13

  28. Section 4.4 Surface Area of a Right Triangular Prism

  29. INVESTIGATE With your partner… Determine the area of the rectangle shown Using the full sides of the rectangle, create a triangle. What would the area of this triangle be? Create your own formula for finding the are of a triangle What is half the area?

  30. Area of rectangles = Area of a triangle = **Pay close attention to which height we are using

  31. Example 1. Calculate the total surface area 5 Reminder**Be Organized!

  32. Example 2. Find the surface area *What shapes are included?

  33. Example 3.

  34. Ms. A needs to build a wedge for his door so that 
he can keep it shut so students can't get out Example 4. Calculate the surface area

  35. Practice Pages 191 - 193 4* 7a(i)* 9a*c 13

  36. 4.7 Surface Area of a Right Cylinder

  37. What does the net of a cylinder look like?

  38. With your partner…. You will receive the shapes that you need to make a cylinder Cut these shapes out and make a cylinder Using what you already know about circles and area, see if you can find the surface area of your shape. INVESTIGATE Hint***What is the distance around the circle? How could this help us

  39. How would we find surface area? Radius Area? Radius Area? Area?

  40. πd 2πr How does this relate to length of the curved surface?

  41. The distance all the way around the circle is called the circumference...this is the same as the width of our curved lateral surface! Those lines are the same distance!

  42. Circumference = radius We use this to find the area of our curved lateral surface.... h A = l x w

  43. Example 1. With your partner, calculate the surface area

  44. Example 2. Calculate Surface Area

  45. Example 3. We are wrapping presents and we want to use the least amount of wrapping paper possible. Should we choose... a) Box with dimensions of 8cm by 3cm by 7cm b) Cylinder Tube with a radius of 3cm and a 
height of 6 cm

  46. Practice Pages
212-14: 4a, 6b, 8b, 9, 13, 16

  47. QUIZ REVIEW!!! 4.1 - 4.4 & 4.7 NETS AND 
SURFACE AREA

  48. Draw and label the net of this triangular prism

  49. Name these 4 nets.... Speed Round!!!

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