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Home > CCG > Chapter 1 > Lesson 1.2.4 > Problem 1-85


Plot the following points on another sheet of graph paper and connect them in the order given. Then connect points and .  

, , , and

  1. A rectangle is a four-sided polygon with four right angles. Does the shape you graphed appear to be a rectangle? Use slope to justify your answer.

    Is each pair of adjacent segments perpendicular?

  2. If is rotated clockwise () about the origin to form , what are the coordinates of the vertices of ?

    Complete the table in the eTool below then click the "View Rotated Figure" circle to answer part (b).
    Click the link at right for the full version of the eTool: 1-85 HW eTool