Copy of IM 6.1.6 Lesson: Area of Parallelograms

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• Offline Arbejdsark (.zip)

• GeoGebraFiler

  1. How many dots are in the image? How do you see them? Can you find any shortcuts to finding the total? (.ggb)
     
  2. Create a parallelogram with a base of 10 and a height of 6. Calculate the area. Then, use the Show Area checkbox to see if you are correct. Notice that the slant height is NOT the same as t (.ggb)
     
  3. Create a parallelogram that has a height of 7 and a base of 9. Calculate the area. Then, check if your calculation is correct by using the Show Area button. Also notice that the slant heig (.ggb)
     
  4. Here is Parallelogram B. What is the area of parallelogram B? (.ggb)
     
  5. Here are two different parallelograms with the same area. (.ggb)
     
  6. Drag points to create two new parallelograms that are not identical copies of each other but that have the same area as each other. Sketch your parallelograms and explain or show how you know (.ggb)