Question 921689: Three consecutive vertices of a parallelogram a (5,1), (1,3), (-5,-1). Find the coordinates of the fourth vertex.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Three consecutive vertices of a parallelogram a (5,1), (1,3), (-5,-1). Find the coordinates of the fourth vertex.
----
The easiest way to do this is to transpose one of the given sides.
Label the points:
A(5,1), B(1,3), C(-5,-1)
---
Transposing side AB along side BC:
From B to C, x changes by -6 and y changes by -4
Adding these to point A gives point D(-1,-3).
--------
Graphing it makes it easier to understand.
|
|
|
