### Home > INT1 > Chapter 9 > Lesson 9.1.3 > Problem 9-38

9-38.

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

*,*

*,*

*, and*

*.*

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.

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.

Click the link at right for full version of the eTool: *9-38 HW eTool* (Desmos)