Step by step tutorial to change the shape of a circle with point in adobe illustrator
Step 1:
Go to rectangle tool -> ellipse tool
Step 2:
Select ellipse tool by single left click on mouse.
Step 3:
Press left mouse button one time and dont release it. move your mouse to draw the desired circle
Step 4:
Release the mouse button. Congratulations! now we can see circle on our document.
Step 5:
Select the direct selection tool and select the circle by single left click on any corner of circle.
Step 6:
Now, you can see the handles on circle. just move the handles to change the shape of circle.