Question 864720
 SHOW in two ways that (0,-5) (3,-4) (8,0) and (5,-1) are the vertices of a rhombus. PLEASSSE HELP!
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1st: Plot the points so you can see where the sides would be.
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2nd: Find the length of the "sides" using:
d = sqrt[(x1-x2)^2+(y1-y2)^2]
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3rd: If the sides are equal, the figure is a rhombus.
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Example::
d = sqrt[(0-5)^2+(-5--1)^2] = sqrt[25+16) = sqrt(41)
d = sqrt((3-8)^2 + (-4-0)^2] = sqrt[25+16] = sqrt(41)
etc.
Cheers,
Stan H.
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