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Geometry of coordinateFind the perimeter of a rhombus PQRS with vertices P(-2,3),Q(1,1),R(4,3)a-nd S(1,-7) |

PQRS isn't a rhombus. Are you sure those are the correct coordinates? |

Yes...100% Sure...Why did you say it is not correct?but please if it is not teach me how to solve similar question |

I need help solving similar question |

1 Attachment(s) This is why skipjack was wondering. -Dan |

Quote:
So one side of this is PQ. We have $\displaystyle \sqrt{ (-2 -1)^2 + (3 - 1)^2 } = \sqrt{13}$. Get the vertices of an actual rhombus and try it out. -Dan |

For a rhombus, each side has the same length. |

Oh....I get it,after my own research on using 'THE DISTANCE FORMULA'' i would end up to have length '5' and breadth'6' which is not the property of a rhombus but the property of a rectangle which leads me to P=4L therefore obtaining20..That means this is a mistake in my textbook |

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