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Unit 6 Review
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Solve for x, given that the triangles are similar.
35
Solve for x, given that the triangles are similar.
63
If A(-1,4) is dilated to become A'(-4,16), what is the scale factor?
4
If A(-10,5) is dilated to become A'(-2,1), what is the scale factor?
1/5
Determine the location of b' after the triangle has been dilated by a scale factor of 3.
(-6,12)
Determine the location of b' after the triangle has been dilated by a scale factor of 2.
(-4,8)
Triangle ABC has vertices A(8,12), B(-4,8), C(16,0). If the triangle is dilated by a scale factor of 4, what are the new coordinates of the image?
A'(32,48), B'(-16,32), C'(64,0)
Triangle ABC has vertices A(8,12), B(-4,8), C(16,0). If the triangle is dilated by a scale factor of 1/4, what are the new coordinates of the image?
A'(2,3), B'(-1,2), C'(4,0)
Identify the scale factor given the graph of the preimage and its image.
1/3
When the scale factor of a dilation is equal to 1, what is the result?
stays the same
When the scale factor of a dilation is less than 1, what is the result?
reduction
When the scale factor of a dilation is greater than 1, what is the result?
enlargement
What does this symbol mean?
similar
Fill in the blanks (in order): Similar polygons have the same _______, but different _______.
shape, size
Fill in the blank: In similar figures, the corresponding angles are congruent and the corresponding sides are ______________.
proportional
Using the similarity statement, which side corresponds to LJ?
NP
What is the scale factor of ΔABC to ΔDEF?
2/3
Solve for r.
32.3
Solve for x.
-7
Solve for m.
5
Solve for x.
77
Which of the following is an incorrect way to write a ratio? 5/3, 5 to 3, 5-3, 5:3
5-3
Ben has a farm with 65 cows, 30 horses, 45 chickens, and 55 sheep. What is the ratio of chickens to horses on his farm?
3/2
There are 14 boys and 16 girls in Mrs. Willis' class. What is the ratio of girls to boys in simplest form?
8/7
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