Question 31477
please give sketch or describe the problem fully so that we can answer your question
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RSTW is a rhombus. GIve the coordinates of S and T.
GIVE OR GIVEN?IF SO WHAT ARE THEY? IF NOT WHAT IS GIEN?
 In part (c)

WHAT IS THIS PART?
 give the coordinates in a terms of a and c, without introducing any new variables.
WHAT ARE A AND C?

d. Use your figure in part (c) for a coordinate proof that the diagonals of a rhombus are perpendicular.
IT CAN BE DONE PROVIDED YOU GIVE THE COMPLETE QUESTION.