13 mm. The radius of a circle is 1/2 of the diameter.
3.5 mm
If the radius of a circle is twice the diameter. The outer diameter of a circle the size of a circle. 32.25 mm = 1.27 inches
15mm
The diameter of any circle is twice the radius. Since the radius of this circle is 15mm, the diameter is 15mm*2=30mm. 30mm is also 3cm.
24 mm. The diameter is twice the radius.
12mm - half the diameter.
13 mm. The radius of a circle is 1/2 of the diameter.
Well, honey, the radius of a circle is always half of the diameter. So if the diameter is 30 mm, the radius would be 15 mm. It's basic math, darling. Hope that clears things up for you!
15mm. diameter is twice the radius
9 mm
3.5 mm
20 mm. The diameter is always twice the radius.
If the radius of a circle is twice the diameter. The outer diameter of a circle the size of a circle. 32.25 mm = 1.27 inches
Diameter = 2 x radius = 18 mm .
9 mm
25mm