Question

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.

Please show all work, thanks (:

Answer 1

What did you use to solve for point S? There are other points that will form parallelograms with those other 3 vertices.

Answer 2

I used this: http://ca.answers.yahoo.com/question/index?qid=20110507102824AAM0fCL