We have a paralleogram
The slope of the line segment from (1,1) to (3,5) = the slope of the line segment from (-3,2) to (-1,6) = 2
Thus, these segments are parallel
And the slope of the line segment from (-1,6) to (3,5) = the slope of the line segment from (-3,2) to (1,1) = -1/4
So these segments are also parallel.
And when two parallel transversals intersect another pair of parallel transversals, the quadrilateral formed has opposite sides of equal length.
Therefore, we have a parallelogram.....a four-sided figure whose oppsite sides are parallel and equal.
Here's a picture......
P.S. - if AB = AD, we would have a rhombus but AD > AB.....
AD = √20 AB = √17
We have a paralleogram
The slope of the line segment from (1,1) to (3,5) = the slope of the line segment from (-3,2) to (-1,6) = 2
Thus, these segments are parallel
And the slope of the line segment from (-1,6) to (3,5) = the slope of the line segment from (-3,2) to (1,1) = -1/4
So these segments are also parallel.
And when two parallel transversals intersect another pair of parallel transversals, the quadrilateral formed has opposite sides of equal length.
Therefore, we have a parallelogram.....a four-sided figure whose oppsite sides are parallel and equal.
Here's a picture......
P.S. - if AB = AD, we would have a rhombus but AD > AB.....
AD = √20 AB = √17