Scaling

Edward Knote, Jan 13, 2016

Investigations on scaling 2 and 3 dimensional objects.


  • 1. Scaling Images
  • 2. Effects of scaling on volume.
  • 3. dilation and similar triangles
  • 4. Campbell's soup: scaling up
  • 5. Are they similar? (1)
  • 6. Transformation Mistery
  • 7. Mystery Dilation

1.

Scaling Images

A photographer wants to print a photograph and two smaller copies on the same rectangular sheet of paper. The photograph is 4 inches wide and 6 inches high.
For each rectangular arrangment you crate:[br]1) Find the measurements of the small photographs for each arrangement. Show your calculations and explain how you figured it out.[br][br]2) Find the size of the sheet of paper for each arrangement.[br][br]3) Looking at only the smaller copies of the photos, are the areas the same? Justify it.[br][br]4) Is the ratio of the area of one small photo to the entire sheet of paper the same for both diagrams? Explain how you know.
choose the correct scale factore
– Edward Knote

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