a square has a perimeter of 20 units one vertex of the square is located at (-3, -3) find the coordinates of another possible vertex

1 answer

To find the coordinates of another possible vertex of the square, we first need to determine the side length of the square using the perimeter.

The perimeter \( P \) of a square is given by the formula: \[ P = 4s \] where \( s \) is the side length. Given that the perimeter is 20 units, we can find the side length:

\[ 20 = 4s \implies s = \frac{20}{4} = 5 \text{ units} \]

Now, since one vertex of the square is at \((-3, -3)\), we can find the coordinates of the other vertices by considering the square's side length and potential orientations.

The other vertices can be determined by moving from the point \((-3, -3)\) a distance of 5 units in the directions that correspond to square's orientation (up, down, left, right, and diagonal placements).

  1. Horizontal and Vertical Movement:

    • Moving right: \((-3 + 5, -3) = (2, -3)\)
    • Moving left: \((-3 - 5, -3) = (-8, -3)\)
    • Moving up: \((-3, -3 + 5) = (-3, 2)\)
    • Moving down: \((-3, -3 - 5) = (-3, -8)\)
  2. Diagonal Movement: The vertices of the square will also be located diagonally from \((-3, -3)\). The possible diagonal directions are:

    • Moving up-right: \((-3 + 5/\sqrt{2}, -3 + 5/\sqrt{2})\)
    • Moving up-left: \((-3 - 5/\sqrt{2}, -3 + 5/\sqrt{2})\)
    • Moving down-right: \((-3 + 5/\sqrt{2}, -3 - 5/\sqrt{2})\)
    • Moving down-left: \((-3 - 5/\sqrt{2}, -3 - 5/\sqrt{2})\)

After calculating the specific diagonal movements, we can also simplify it using \( \frac{5}{\sqrt{2}} \approx 3.54 \):

  • Up-right: \((-3 + 3.54, -3 + 3.54) \approx (0.54, 0.54)\)
  • Up-left: \((-3 - 3.54, -3 + 3.54) \approx (-6.54, 0.54)\)
  • Down-right: \((-3 + 3.54, -3 - 3.54) \approx (0.54, -6.54)\)
  • Down-left: \((-3 - 3.54, -3 - 3.54) \approx (-6.54, -6.54)\)

Thus, the potential coordinates for another vertex of the square include:

  1. \((2, -3)\)
  2. \((-8, -3)\)
  3. \((-3, 2)\)
  4. \((-3, -8)\)
  5. \((0.54, 0.54)\)
  6. \((-6.54, 0.54)\)
  7. \((0.54, -6.54)\)
  8. \((-6.54, -6.54)\)

For simplicity, one example could be \((2, -3)\) or \((-3, 2)\).

Thus, one possible coordinate for another vertex of the square is \((2, -3)\) or \((-3, 2)\), and other vertices could also be valid depending on orientation.