anonymous
  • anonymous
An engineer wanted to approximate the width, in feet of a river. she placed markers at point A and point B to represent the average width of the river. She also placed 3 other markers along the riverbank and measured the distances shown in the diagram below. Based on this diagram, what was the width of the river, in feet, from point A to point B?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1337276808827:dw|
atlas
  • atlas
Use similarity of triangles
atlas
  • atlas
The two triangles that u see are similar and hence their corresponding sides will have the same ration

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anonymous
  • anonymous
so..i should put 62 over 93 and 49 over X?
anonymous
  • anonymous
find the ratio after that then... times it by 2?
atlas
  • atlas
Label the two triangles and see which angles are equal................The sides corresponding to equal angles are proportional|dw:1337277341870:dw| here AB:AC = BE:CD
atlas
  • atlas
You do not know AB............So let it be x
anonymous
  • anonymous
but you dont know AD either.. right?
atlas
  • atlas
U do not need AD................The equation AB:AC = BE:CD can be written as x/(x+49)= 62/93 Solve for x (Remember x = AB)
atlas
  • atlas
|dw:1337277608429:dw|
anonymous
  • anonymous
\[\left[\begin{matrix}x & 62\\ x+49 & 93\end{matrix}\right]\]
anonymous
  • anonymous
like okay.. x + 49 = AC,, so... ugh sorry i dont get math easily
anonymous
  • anonymous
is there like a formula you can give me to help me out? i know if i see what i need to do i'll understand.

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