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GEO: 7-6 QC (dilatons & similarity)
Közreműködött: Maynard
(Eredeti szerző: Karsten)
1. Given that ∆ABC~∆ADE, find the scale factor.
7.6
3/5
5/3
5/4
3/4
2. Given that ∆ABC~∆ADE, find the coordinates of D.
7.6
(0, -20)
(-20, 0)
(0, -11)
(-11, 0)
3. Given that ∆PQR~∆PST, find the scale factor.
7.6
3
1.13
2.67
.89
4. Given that ∆PQR~∆PST, find the coordinates of S.
7.6
(0, 8)
(0, 6)
(6, 0)
(8, 0)
7.6
5. The figure shows a photograph on grid paper.
What are the coordinates of C' if the photo is
enlarged by a dilation of 1.5?
(3, 5)
(4.5, 5)
(3, 7.5)
(4.5, 7.5)
6.
T'(15, 22.5)
T'(7.5, 9)
T'(4.5, 6.75)
T'(2.5, 20)
7.6
7.
7.6
Looking at the situation above, there isone coordinate that has an error.  Firstdetermine what the scale factor must be and then select the one coordinate from the numbersbelow that was not calculated correctly.

3
1.5
13.5
4.5
24
15
8.  What type of scale factor values will make
     a dilation expand in size compared to the
     original figure?
k < 1
0 < k < 1
k = 1
k > 1
9.  What type of scale factor values will make     a dilation contract in size compared to the     original figure?
k < 1
0 < k < 1
k = 1
k > 1
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