Question 1094802
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A retired couple who live in Columbia, South Carolina, decide to take their motor home and visit two children who live in Atlanta and in Savannah, Georgia. Savannah is 160 miles south of Columbia, and Atlanta is 215 miles west of Columbia. How far apart do the children live from each other?
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To the south 160 miles is one leg of a right triangle and to the west 215 miles is the other leg of a the right triangle.

Distance from Savannah to Atlanta forms the hypotenuse, h.

{{{h=sqrt(215^2+160^2)}}}
{{{h=sqrt(46225+25600)}}}
{{{h=sqrt(71825)}}}
{{{highlight(h=268)}}}, to three significant figures.  If you want to check, try  multiplying,  {{{(268)(268)}}}.