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9-38.

On graph paper, plot and connect the points to form quadrilateral if its vertices are , , , and .  

  1. Calculate the perimeter of . Write your answer with appropriate precision.

    When finding distance on a graph, create right triangles and use the Pythagorean Theorem to calculate lengths.

  2. Rotate quadrilateral clockwise () about the origin to form quadrilateral . What is the slope of ?

  • Remember slope is 

Use the eTool below to solve each part of the problem.
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