Random location but certain distance from object

hi

ive been trying to figure out how to create an object in a random location on the screen but a certain distance away from a central object.

this is what i have for random location. every 3 seconds i create an object at location: x = random(0,800) y = random(0,600)

that works great but i dont want them to appear within a certain area of the screen. this image may help to understand what i mean

<img src="http://i43.tinypic.com/1zamvp.png" border="0" />

the red square is my central object

the blue area represents the no-go zone (distance from object)

the green circles represent the random objects

i need the green circles to appear randomly anywhere on screen but not within a certain distance from the central object ie not inside the blue circle.

is there a formula for this?

thanks

Try creating the object in the middle of the circle, then using the 'Move at angle' action to move it a distance at random(360) degrees.

Or, make a invisible object, pin it to the player, and check the conditionals:

Created object is not overlapping the invisible object > spawn;

Ashley's idea is the way to go.