Homework Help: geometry

Posted by Lydia on Wednesday, July 20, 2011 at 11:23pm.

Using the information about John, Jason, and Julie, can you uniquely determine how they stand with respect to each other? On what basis?

Statement 1: John and Jason are standing 12 feet apart.
Statement 2: Julie is standing 31º NW of Jason.
Statement 3: John is standing 49º SW of Julie.

geometry - drwls, Thursday, July 21, 2011 at 4:27am
Statements 2 and 3 don't make sense to me. A NW direction is not 31 degrees and a SW direction is not 49 degrees.
geometry - Lydia, Thursday, July 21, 2011 at 9:35am
That is the question. I don't get it either.
geometry - drwls, Thursday, July 21, 2011 at 12:11pm
If NW does not mean exactly 45 degrees W of N, and SW does not mean exactly 45 degrees W of S, then the 31 degree and 49 degree angles imply that the angle at Julie's corner is 80 degrees. All you have is one side and one angle. That does not determine the complete triangle.

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