Homework Help: math

Posted by pierre on Thursday, November 15, 2012 at 10:53pm.

on a drive through allegheny county,natalie drove due west for 9 miles,then turned left and proceeded to drive due south.after traveling 12 miles south,what was the straight 12 miles line distance between where natalie startd and where she ended her drive? 1] 13 miles 2] 14 miles 3] 15 miles 4] 16 miles 5]21 miles help please

math - Ms. Sue, Thursday, November 15, 2012 at 10:56pm
Pythagorean Theorem:

a^2 + b^2 = c^2

9^2 + 12^2 = c^2

81 + 144 = c^2

225 = c^2

15 = c
math - pierre, Thursday, November 15, 2012 at 11:01pm
thanks
math - Ms. Sue, Thursday, November 15, 2012 at 11:16pm
You're welcome.

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