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February 22, 2016
0°
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Example 1
a. Produce a scale drawing of ∆ LMN using the ratio method with point O
as the center and a scale factor of 2.
0
0
14°
1
2
3
1
4
5
6
2
7
8
9
3
10
11
4
12
13
14
5
15
b. Use the dilation theorem to predict the length of L'N', and then
measure its length directly using a ruler.
c. Does the dilation theorem appear to hold true? ANS:
Example 2
Given the diagram below, determine if ∆DEF (the image) is a
scale drawing of ∆DGH (pre-image). Explain why or why not.
a. What must be true about the scale factor, r, in this case?
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Example 3
Use the given information in each part and the diagram to find
Given:
Example 4
Use the given information in each part and the diagram to find
Given: AB = 4, AC = 9, and BC = 7
February 22, 2016
Untitled.notebook
February 22, 2016
Example 5
Given ∆VTU, and dilated ∆STR, find x and the measures of the indicated
sides.