SOLUTION: Show that the points A (3,-5), B (-3,-1) and C (7,1) are vertices of an isosceles triangle. Find the area? Help pls. with graph and solution!

Question 684156: Show that the points A (3,-5), B (-3,-1) and C (7,1) are vertices of an isosceles triangle. Find the area? Help pls. with graph and solution!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
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:

-------------------------------------------------------

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

http://www.mathsisfun.com/geometry/herons-formula.html

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