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September 30, 2014

September 30, 2014

Posted by **Rose** on Tuesday, April 9, 2013 at 7:49pm.

Would you not need to more information then this to calculate this answer?

- math -
**rbowh**, Tuesday, April 9, 2013 at 7:54pmUse the Pythagorean Theorem.

(AB)^2 + (AC) ^2 = (BC)^2

substitute for AB and BC.

then solve for AC

- math -
**Reiny**, Tuesday, April 9, 2013 at 7:58pmno, just use the cosine law

AC^2 = 10^2 + 18^2 - 2(10)(18)cos45° ---- assuming that Nw meant "northwest"

= 169.44...

AC = √169.44.. = appr 13.02 km

- math -
**rbowh**, Tuesday, April 9, 2013 at 8:45pmRose,

Sorry, I got in a hurry.

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