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Mathematics 21 Online
OpenStudy (anonymous):

PLEASE HELP WITH THIS VECTORS PROBLEM! The points P(-2 , 1), Q(-6 , 4), R(4 , 3) are three vertices of parallelogram PQRS. a) Find the coordinate of S. -> SOLVED: S=(8 , 0) b) Find the measures of internal angles of the parallelogram, to the nearest degree. c) Find the measures of the angle between diagonals of the parallelogram to the nearest degree. Is this correct? http://ca.answers.yahoo.com/question/index?qid=20110507102824AAM0fCL Please show all work, thanks (:

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