SOLUTION: Square CDEF has the vertices C(-1,1), D(2,6), E(7,3), and F(4, -2). What is the area of CDEF?

Algebra ->  Coordinate-system -> SOLUTION: Square CDEF has the vertices C(-1,1), D(2,6), E(7,3), and F(4, -2). What is the area of CDEF?      Log On


   

Question 308439: Square CDEF has the vertices C(-1,1), D(2,6), E(7,3), and F(4, -2). What is the area of CDEF?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
34 sq units.
One way to do this:
Find the length of a side, I'll do CD
CD+=+sqrt%28diffy%5E2+%2B+diffx%5E2%29
CD+=+sqrt%285%5E2+%2B+3%5E3%29+=+sqrt%2834%29
Area = CD^2 = 34
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email via the thank you note if you want another method.