PLEASE HELP. I'll post a diagram below! To measure the width of a river, a surveyor places markers A through E as below. With BC parallel to DE, AB=50 ft, BD= 262 ft, and BC= 75 ft, how wide is the river length DE?

Question

anonymous · Answer

|dw:1409718301451:dw|

kkutie7 · Answer

|dw:1409718461728:dw| here is a right triangle solve for ?

anonymous · Answer

251 ft.

kkutie7 · Answer

|dw:1409718519336:dw|
$$\sqrt{75^{2}+262^{2}}=c$$

kkutie7 · Answer

|dw:1409718707358:dw|

anonymous · Answer

okay, now im completely lost on what to do after this point.

kkutie7 · Answer

well we have one component for the triangle we want.

kkutie7 · Answer

@zepdrix

anonymous · Answer

@midhun.madhu1987

anonymous · Answer

yes, D to E

zepdrix · Answer

lol it said right in the question :) derp...
im so slow

anonymous · Answer

haha that's okay :P

zepdrix · Answer

|dw:1409719273282:dw|So we have similar triangles, yes? :)

zepdrix · Answer

I think we can just set up a ratio to find our missing side :d

zepdrix · Answer

$$\Large\rm \frac{75}{50}=\frac{x}{50+262}$$

zepdrix · Answer

|dw:1409719411838:dw|