to find the width of a river a surveyor makes the following measurements (all measurements are in feet) use the diagram of the similar triangles to find the width of the river

Question

anonymous · Answer

|dw:1369861065021:dw|

jdoe0001 · Answer

I can see what 63 is, but can't say what 12 or 9 are :|

anonymous · Answer

the 12 and 9 or the other triangle below

jdoe0001 · Answer

ahemmm, what's the other triangle doing?

jdoe0001 · Answer

I mean, I can see is a triangle, but not sure what's representing

anonymous · Answer

well its not the river its jus out 12 is the height and 9 is the base

jdoe0001 · Answer

can you take a quick screenshot of the material?