Brandonjb Brandonjb
  • 02-06-2015
  • Mathematics
contestada

Maria walked 3 km west and 4 km south . calculate how far she is from her starting point.

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kevingrosman kevingrosman
  • 02-06-2015
if you draw her track and connect her starting and ending points, you have a right triangle, with 3 and 4 being the legs. According to the pythagorean theorem. 3^2+4^2=x^2 when x is her distance from starting point. so x^2=25 and x=5. Her distance is 5
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