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### radius of a circle

Posted:

**Tue Jan 28, 2020 2:47 am**
by **zhkhan**

How to input a specific radius of a circle?

here is syntax to generate a circle but I am not sure what radius it has.

START(0.5,0.27)

ARC(CENTER=0.5,0.18) ANGLE=360

### Re: radius of a circle

Posted:

**Tue Jan 28, 2020 5:26 pm**
by **moderator**

See ARC in the Help index. An ARC can be specified in several ways :

ARC TO (x1,y1) to (x2,y2)

ARC ( RADIUS = R ) to (x,y)

ARC ( CENTER = x1,y1 ) to (x2,y2)

ARC ( CENTER = x1,y1 ) ANGLE=angle

### Re: radius of a circle

Posted:

**Tue Jan 28, 2020 9:54 pm**
by **zhkhan**

Can I say that radius is 0.02 in this case?

START(0.5,0.22)

ARC(CENTER=0.5,0.2) ANGLE=360

### Re: radius of a circle

Posted:

**Wed Jan 29, 2020 10:49 am**
by **moderator**

Yes. That is geometry.