SOLUTION: Quadrilateral ABCD has vertices A(-2,2), B(4,5), C(3,0) and D(-3,-3). What are the coordinates of the midpoint of the diagonal?

Question 1135744: Quadrilateral ABCD has vertices A(-2,2), B(4,5), C(3,0) and D(-3,-3). What are the coordinates of the midpoint of the diagonal?
Found 2 solutions by Boreal, Edwin McCravy:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
This is a parallelogram, because the slope of AB and CD are equal, meaning they are parallel, and the slopes of DA and CB are also equal, meaning they are parallel. The diagonals intersect bisecting each in the middle, and one can use the midpoint formula for both AC and BD. The midpoints for each should be the same, and AC is (0.5, 1) and DB is (0.5, 1), which are the same.
Answer by Edwin McCravy(20055) (Show Source): You can put this solution on YOUR website!

Draw the quadrilateral and the diagonals on graph paper, and you
can look and see that the midpoint of the two diagonals is the point
. You can work it out using the midpoint formula.
Edwin

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