Question 684156
Hint:


Find the distance between


* Points A and B


* Points B and C


* Points A and C


if two of those distances are the same, then you have an isosceles triangle


You can use the distance formula to do the above


distance formula:  {{{d=sqrt((x[1]-x[2])^2+(y[1]-y[2])^2)}}}


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To find the area, you can use hero's or herons formula, which can be seen at the link below (if you forget it)


<a href="http://www.mathsisfun.com/geometry/herons-formula.html">http://www.mathsisfun.com/geometry/herons-formula.html</a>



Let me know if you need more help with this. Thanks.