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prof euclidean first quiz
ByTheWayDate: Sunday, 2012-07-29, 7:48 PM | Message # 1
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Stall Mucker
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this is for profeuclidean quiz, could someone run me though this question as a sample question please.
how many city blocks would you have to walk back, if you walked 4 blocks east,then 9 blocks north and then finished by walking 7 blocks west?

from bytheway smile
 
HanoLoverDate: Monday, 2012-07-30, 12:21 PM | Message # 2
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It might help you to try and draw this situation out on grid paper. The way I think about it is to split it into two directions, the vertical direction (north/south) and the horizontal direction (east/west).
Let's start with vertical. In this example, you are only traveling north, so you will end up 9 blocks above where you started.
For the horizontal direction, you travel 4 blocks east and 7 blocks west. East and west cancel each other out, so if you subtract your east from your west (7-4), you will end up 3 blocks west of your original position.
So overall, you are 9 blocks north and 3 blocks west of where you started, meaning that, adding those up, you would have to walk back 12 blocks.

I hope that wasn't too confusing, let me know if you need any clarifications. smile
 
ByTheWayDate: Wednesday, 2012-08-01, 6:34 PM | Message # 3
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Thank you sooo much! smile i completely understand now.

megan
 
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