round
Circle
An arc is just part of the circumference of a circle.
A circle because there are 360 degrees around a circle.
half of the circle plus a little more
6.2MM
3.142
2mm (d = r x 2)
Diatoms are a type of phytoplankton with a distinctive cell structure made of silica, giving them a glass-like appearance. They come in various shapes, from circular to elongated, and can form intricate patterns and designs. Under a microscope, diatoms appear as colorful, geometric shapes with intricate detailing.
a circle
The radius is half the diameter 15mm because the raduis is half the diameter so 30mm divided by 2mm it would be 15mm
kidney stones come in all shapes and sizes. they are usually rounded and bumpy. not smooth, obviously. 2mm is roughly about the size of the head of a pin head.
a circle with a certain percent at a certain mesurement.
You could not tell because a circle is round.
From front side it will look like a simple circle
a circle
half a circle