Let P(4,3), Q(10,-1) and R(-3,-4) be three points. then which of the following is true?
1) QR<PQ+PR ?
2) QR>PQ+PR ?
3) QR=PQ+PR ?
4) QR<PR<PQ ?
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Using distance formula
PQ = √{(10 - 4)² + (-1 - 3)²} = √52 unit
PR = √{(-3 - 4)² + (-4 - 3)²} = √98 unit
QR = √{(-3 - 10)² + (-4 - 1)²} = √194 unit
So 1) QR<PQ+PR ANSWER
PQ = √{(10 - 4)² + (-1 - 3)²} = √52 unit
PR = √{(-3 - 4)² + (-4 - 3)²} = √98 unit
QR = √{(-3 - 10)² + (-4 - 1)²} = √194 unit
So 1) QR<PQ+PR ANSWER
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