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OpenStudy (matthew120):
Find the scale factor for the similar figures.
OpenStudy (alexandervonhumboldt2):
scale factor=Side of new figure/side of old figure
OpenStudy (matthew120):
|dw:1448921386938:dw|
OpenStudy (matthew120):
|dw:1448921506651:dw|
OpenStudy (alexandervonhumboldt2):
divide one side of new figure by corresponding side of old figure
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OpenStudy (ghostgate):
Alexander is right again, simply divide the old factors by the new factors measurements.
Just like if something was 2x2 and you now have 8x8, divide 8 by 2 to get 4, so your scale factor would be 4.
OpenStudy (alexandervonhumboldt2):
|dw:1448771278894:dw||dw:1448771287121:dw|
OpenStudy (ghostgate):
I meant new divided by old. :/
OpenStudy (alexandervonhumboldt2):
old figure*scale factor=new figure
6*x=1.5
x=1.5/6=?
OpenStudy (matthew120):
0.25
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OpenStudy (ghostgate):
Yep, that's the answer. Good job.
OpenStudy (matthew120):
nope it not
OpenStudy (alexandervonhumboldt2):
what figure is new?
OpenStudy (alexandervonhumboldt2):
first or second one?
OpenStudy (matthew120):
what 1/4 is 0.25 right
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OpenStudy (ghostgate):
In other words is the new one 1.5x2 or 6x8?
OpenStudy (alexandervonhumboldt2):
1/4=0.25 yeah
OpenStudy (matthew120):
oh
OpenStudy (matthew120):
i am really dumb
OpenStudy (ghostgate):
The only alternative I can think of if that is also wrong is that it's the area of the new one divided by the area of the second one, which results in 0.0625.
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OpenStudy (matthew120):
Use the scale factor to find the length of the image.
scale factor: 8
length of figure = 10 yd
length of image =