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Question

Find the distance between the points (0,0) and (36,15). Can you now find the distance between the two towns A and B .
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Solution

LetthetwopointsbeP(0,0)andQ(36,15)Now,PQ=(x2x1)2+(y2y1)2=(360)2(150)2=(36)2+(15)2=1296+225=1521=39.Now,ItisgiventhatBislocated36kmeastand15kmnorthoftownA.LetustakeAasorigin.Now,AB=(360)2+(150)2=12596+225=1521=39.Hence,thedistancebetweenthetwotownsis39km.

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