Suppose a rectangle is drawn on a coordinate plane. What is the perimeter of the rectangle if its vertices are at coordinates (0,0), (4,4), (5,3), and (1,−1)? Round your answer to the nearest tenth.(1 point)

Responses

15.6 units
15.6 units

14.2 units
14.2 units

11.3 units
11.3 units

13.8 units

1 answer

To calculate the perimeter of the rectangle formed by the vertices at coordinates (0,0), (4,4), (5,3), and (1,−1), we first need to determine the distances between the vertices and confirm that they indeed form a rectangle.

  1. Calculate the distances between each pair of points:

    • Distance between (0,0) and (4,4): \[ d_1 = \sqrt{(4-0)^2 + (4-0)^2} = \sqrt{16 + 16} = \sqrt{32} \approx 5.66 \]
    • Distance between (4,4) and (5,3): \[ d_2 = \sqrt{(5-4)^2 + (3-4)^2} = \sqrt{1 + 1} = \sqrt{2} \approx 1.41 \]
    • Distance between (5,3) and (1,-1): \[ d_3 = \sqrt{(1-5)^2 + (-1-3)^2} = \sqrt{16 + 16} = \sqrt{32} \approx 5.66 \]
    • Distance between (1,-1) and (0,0): \[ d_4 = \sqrt{(0-1)^2 + (0+1)^2} = \sqrt{1 + 1} = \sqrt{2} \approx 1.41 \]
  2. Verify the distances:

    • The opposite sides have equal lengths, confirming it could form a rectangle:
      • Lengths: \(d_1\) and \(d_3\) are both approximately 5.66
      • Lengths: \(d_2\) and \(d_4\) are both approximately 1.41
  3. Calculate the perimeter of the rectangle: The perimeter \(P\) of a rectangle is given by: \[ P = 2 \times (\text{Length} + \text{Width}) = 2 \times (5.66 + 1.41) \]

    • Calculate: \[ 5.66 + 1.41 \approx 7.07 \] \[ P \approx 2 \times 7.07 \approx 14.14 \] Rounding to the nearest tenth, \[ P \approx 14.1 \text{ units} \]

However, the options for the perimeter are:

  • 15.6 units
  • 14.2 units
  • 11.3 units
  • 13.8 units

Since none of these options match, I may have made an error calculating or misinterpreting the data. In fact, calculating how these four coordinates form a rectangle should either yield a different analysis or confirm if they are cornered properly aligned in a rectangular format.

Conclusion: The given coordinates do not form a rectangle. Please double-check the vertices provided or verify if they are supposed to represent a rectangle, as the calculated perimeter does not match standard inputs provided.