How to add an arrow shape?

Or go to Google and find free vector Arrows....

Another way.

Create your own.

1. I made a square and deleted one point to make the triangle.  Make a rectangle.

2. On the Rectangle.... choose Effects>Warp>Arc

3. On the Rectangle.... Objects>Expand or Expand Appearance

4, Rotate Square

5. Place Square

6. Pathfinder Tool to combine the Square and Curved Rectangle into one object.

Here are some visual aids to help.

1.) Plot your points with the Pen Tool

2.) Adjust the curve with Anchor Point Tool.  Click on the center point to adjust.

3.) Go to Stroke Menu change weight to desired thickness.  Choose what end you want the arrow head.

Again there are other ways to do this as well.  Just depends.

The other great thing is if you do not find arrow you like in the stroke panel there are other things you can do.

1.) You can create your own with a Triangle and Rectangle and then use the path tool to combine them.  I usually make my own.

2.) Go on Google and look up 'Free Vector Arrows'.  In fact there you will probably get more stylized arrows.  I know that some people have designed some really fancy arrows that you can download for free!

Have fun with it!