### Home > GB8I > Chapter 8 Unit 9 > Lesson INT1: 8.1.1 > Problem 8-10

8-10.

Quadrilateral has coordinates

*,*

*,*

*, and*

*.*

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?is rotatedabout the origin to create . Thenis reflected across the-axis to form. Name the coordinates of pointand point.What are the area and perimeter of

?

Use the eTool below to help solve each part.

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