Question 613714
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Hi, 
If you walk 2.0 miles, turn right and walk due west for 2.1 miles, 
how far are you from the place you started
(as measured along a straight line between the starting point and ending point)
Draw a picture in Your mind or on paper of the right triangle formed
 {{{sqrt(2^2 + (2.1)^2))}}} = far are you from the place you started = 2.9 mi