
To find the coordinates of the fourth vertex of a rectangle.

Answer to Problem 8MRE
The coordinates of the fourth vertex of a rectangle is,
Explanation of Solution
Given information: The three vertices of a rectangle is
Calculation: The required fourth vertex of a rectangle is obtained as,
Figure is,
Let fourth vertex is
So, midpoints of both the diagonals will be same.
Midpoint of first diagonal,
Midpoint of second diagonal,
Equating both,
Hence, the coordinates of the fourth vertex of a rectangle is,
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