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Sticky Note
If ABCD is a square where A(2,3), B(6,7), C(10,1), then D=?:
  1. (6,3)
  2. (-6,-3)
  3. (6,-3)
  4. (6,5)
Explanation
We are given three vertices of a square ABCD:

We need to find .

Step 1: Understanding the Square Properties
A square has equal sides and perpendicular diagonals. The diagonals also bisect each other at their midpoint.
Step 2: Find the Midpoint of Diagonal AC
The midpoint formula for two points (x1,y1) and (x2,y2) is:
For diagonal AC:
Step 3: Use Midpoint to Find D
Since diagonals bisect each other, midpoint M is also the midpoint of diagonal BD.
Using the midpoint formula for BD:
Substituting B(6,7) and M(6,2)
Step 4: Solve for D

Equating the coordinates:

  1. For x-coordinate:

  2. For y-coordinate:

    D_y = -3

Correct option: (6, -3)

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