Page 7 Original Expression: Step 1: Step 2: Step 3:
Page 8 Rectangle A is the original 8.5 x 11 inch paper. What are the dimensions of the following rectangles (B, C, D, and E)? What fraction of the original A rectangle does each represent? How do you think this is represented in a dilation?
The scale factor is 1:2 because all dimensions on Triangle ABC are doubled to product the similar triangle DEF.
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Page 10 Does Rectangle B appear to be an enlargement or reduction of Rectangle R? Use the following sentence frame: “The length and width of Rectangle B are each ________ the length and width of Rectangle R. Therefore scale factor is _______.
Page 10 Does Rectangle C appear to be an enlargement or reduction of Rectangle B? Use the following sentence frame: “The length and width of Rectangle C are each ________ the length and width of Rectangle B. Therefore scale factor is _______.
Page 10 Does Rectangle C appear to be an enlargement or reduction of Rectangle R? Use the following sentence frame: “The length and width of Rectangle C are each ________ the length and width of Rectangle R. Therefore scale factor is _______.
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Page 12 How does the length of 12cm compare to the width of 3cm in Rectangle A? Rectangle A
Rectangle A How does the length of 12cm compare to the width of 3cm in Rectangle A? 6 x 1.5 10 x 2 13 x 4
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. . . Page 13 If the scale factor is , will the new image be an enlargement or reduction of the pre-image? . . . Pre-image Image
Page 13 If the scale factor is 2 , will the new image be an enlargement or reduction of the pre-image? . . . . Pre-image Image
Page 13 If the scale factor is , will the new image be an enlargement or reduction of the pre-image? . . . . . . . Pre-image Image
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Page 14 Given: o m CBA = 38