CPM Homework Banner

Home > CC4 > Chapter 8 > Lesson 8.1.1 > Problem 8-10

8-10.

Quadrilateral has coordinates , , , and . 8-10 HW eTool (Desmos). Homework Help ✎

  1. Graph on graph paper. What shape is ? Justify your answer.

    Use the Pythagorean Theorem to find the length of the each side. What does this tell you about the shape?
    Calculate the slope of each side. What does that tell you about the adjacent sides?

  2. is rotated about the origin to create . Then  is reflected across the -axis to form . Name the coordinates of point and point .

  3. What are the area and perimeter of ?

Use the eTool below to help solve each part.
Click the link to the right for the full version: INT1 8-10 HW eTool.