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Bell Work
1. Classify the shape of a soup can as a three-dimensional figure.
2. Classify the following shape using two three-dimensional figures.
Cylinder
1. Rectangular Prism
2. Triangular Prism
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Surface Area Using Nets
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Definition• Surface Area – is the total number of square
units used to cover a 3-D surface.• Surface area is found by finding the area of all
the sides and then adding those answers up.
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Nets• A net is all the surfaces of a solid laid out flat.• A two-dimensional pattern that can be folded
to form a three-dimensional figure.
Top
RightSideFront
Top
Bottom
Front
Back
Right SideLeft Side
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Exploration Activity• YOU WILL NEED:1. Handout
2. 2 solids: Rectangular Prism and Triangular Prism
3. Practice- Surface Area Worksheet (When we are done with #1 and #2)
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1. Answer Questions 1-3 on your worksheet.2. Cut around the outside of each net.3. Fold to make a three dimensional figure4. Follow Steps 1-3 on your worksheet with Miss
Schrader to find the surface area of each of your cut out figures.
5. Try to answer questions 4 and 5 on your own. We will discuss these answers on Friday.
6. Answer questions 6 and 7 on your own.7. Turn it into your periods box where you
usually turn in your assessment.8. Work on your practice.