Similar vs Congruent
Describe the transformation
Scale Factor
Slope
Micellaneous
100
yes they are
100
How does shape A get to shape E
Translate down 2 and right 11
then rotate counterclockwise 90 degrees
100
What is the scale factor?
2
100
What is the slope of the diagonal line?
6/4 or 1.5
100
15 *2.1
31.5
200
No they are not
200
Describe the transformation from shape A to shape C
1. Dilate with SF = 3 then translate right 7
2. Translate right 15 then dilate with SF = 3
200
What is the scale factor from shape C to shape B?
4
200
Give the slope of the line:
8/4=4/2=2/1=2
200
What is the slope of the line?
1/4 or 0.25
300
List all the letters of the shapes that are similar:
A, B, C, E
300
Describe the similarity transformation
Dilate with SF = 2 around point D then translate up 2 and right 1
300
Give the scale factor from big shape to small shape and find the missing side lengths.
EF = 7
DF = 8
300
Give an equation for the line:
(y-12)/(x-8)or (y-4)/(x-4)
300
What are the 3 things needed when decided if figures are similar or not?
exact same angle measures
same shape
same scale factor/side lengths are proportional
400
Give all the dimensions needed for Triangle DEF:
EF = 4.2
DF = 7.4
400
Describe the similarity transformation:
1. Dilate with SF = 2 then reflect over the y axis
2. Reflect over y axis then dilate with SF = 2
3. Double points if you did from small shape to large shape: dilate with SF = 1/2 then reflect over the y-axis
400
What is the scale factor?
Double points if read the picture correctly and went from large shape to small shape
1/4
400
Using the equation for this line determine if the point (12, 20). Show work for double points
yes it is (16/8 = 2)
400
Give the measure of angle DCF and FCE:
DCF = 142
FCE = 38