Suppose a parallelogram is drawn on a coordinate plane. Using vertices with the coordinates  (0,0) ,  (2,3) ,  (5,2) , and  (3,−1) , compute the perimeter. Round your answer to the nearest tenth.(1 point)The perimeter is approximately  units

1 answer

To find the perimeter of the parallelogram formed by the vertices (0,0), (2,3), (5,2), and (3,-1), we first need to calculate the lengths of the sides.

The perimeter of a parallelogram is given by the formula:

\[ P = 2 \times (a + b) \]

where \(a\) and \(b\) are the lengths of the adjacent sides.

Step 1: Calculate the distances between adjacent vertices.

  1. Distance between (0, 0) and (2, 3): \[ d_1 = \sqrt{(2-0)^2 + (3-0)^2} = \sqrt{2^2 + 3^2} = \sqrt{4 + 9} = \sqrt{13} \approx 3.6 \]

  2. Distance between (2, 3) and (5, 2): \[ d_2 = \sqrt{(5-2)^2 + (2-3)^2} = \sqrt{3^2 + (-1)^2} = \sqrt{9 + 1} = \sqrt{10} \approx 3.2 \]

  3. Distance between (5, 2) and (3, -1): \[ d_3 = \sqrt{(3-5)^2 + (-1-2)^2} = \sqrt{(-2)^2 + (-3)^2} = \sqrt{4 + 9} = \sqrt{13} \approx 3.6 \]

  4. Distance between (3, -1) and (0, 0): \[ d_4 = \sqrt{(0-3)^2 + (0-(-1))^2} = \sqrt{(-3)^2 + (1)^2} = \sqrt{9 + 1} = \sqrt{10} \approx 3.2 \]

Step 2: Add the lengths of two adjacent sides.

From the calculations above:

  • One side length is \( \sqrt{13} \approx 3.6 \).
  • The other side length is \( \sqrt{10} \approx 3.2 \).

Step 3: Calculate the perimeter.

Using the lengths: \[ P \approx 2 \times (3.6 + 3.2) \approx 2 \times 6.8 = 13.6 \]

Therefore, the perimeter of the parallelogram is approximately 13.6 units.