SOLUTION: Megan drove her car 7 miles north, then made a left turn and drove 3 miles west. How far is she, in a straight line, from her starting point.

Algebra ->  Length-and-distance -> SOLUTION: Megan drove her car 7 miles north, then made a left turn and drove 3 miles west. How far is she, in a straight line, from her starting point.      Log On


   



Question 870512: Megan drove her car 7 miles north, then made a left turn and drove 3 miles west. How far is she, in a straight line, from her starting point.
Answer by JulietG(1812) About Me  (Show Source):
You can put this solution on YOUR website!
This is a right angle problem.
In a right triangle, a%5E2+%2B+b%5E2+=+c%5E2
7%5E2+%2B+3%5E2+=+c%5E2
49 + 9 = c%5E2
58 = c%5E2
c = sqrt of 58, or 7.616 miles