The **@X,Y** format for entering relative coordinates is also referred to as **cartesian relative coordinates**.

- when drawings involve angles other than multiples of 90 degrees it can be awkward to work with cartesian coordinates.

Sometimes it is easier to work with **relative coordinates** that use distances and angles instead of X and Y ordinates.

- these are called
**relative polar coordinates**and you enter them on the command line when prompted for points by typing**@R<A**. **@R<A**can be interpreted as “from where I am now move a distance of**R**at an angle of**A**”.

**Practice with relative polar coordinates
**

**Close**the drawing from the previous exercise if it is open.- Pick
**File**+**New**and pick the**Start from Scratch**button. Select**English**as the Default Settings & pick**OK**.

You will create the outline shape illustrated below by using the Line command with **relative polar coordinates** this time.

- you will begin and end the sequence of LINE objects on
**P1**which is at the coordinates of (**3,3**)

3- Pick **Draw** + **Line** and follow the dialogue below to create the outline shape shown above using **relative polar coordinates** for **all points** except the starting point. When you return to **P1** you can press <**enter**> to complete **Line**.

*Command: _line
Specify first point: 3,3 ↵*

*Specify next point or [Undo]:*

**@2<0**↵*Specify next point or [Undo]:*

**@2<300**↵*Specify next point or [Close/Undo]:*

**@2<60**↵*Specify next point or [Close/Undo]:*

**@2<0**↵*(complete the outline shape on your own)*