Mathematics
cookiemonster1111
2016-04-08 18:21:12
On a coordinate grid, the coordinates of vertices P and Q for Polygon PQRS are P(3, 2) and Q(−3, 2). What is the length of Side PQ of the polygon?
ANSWERS
YOUNGIN54
2016-04-08 20:23:46

The length of the side is the distance between the two points.  The distance between two points is: d^2=(x2-x1)^2+(y2-y1)^2, so in this case: d^2=(-3-3)^2+(2-2)^2 d^2=(-6)^2+0^2 d^2=36 d=√36 d=6 units. Note we could have just observed that the y-coordinate did not change and know that the distance between the two points or the length of the sides was just the change in x:  3--3=6 units.

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