Answer this question… half
It does not measure anything. It is a two dimentional figure equivelent to half of a circle.
Half the diameter of a circle called the semicircle
Half the distance across a circle.
A semi-circle, half a circle, by definition is 180 degrees, half of a rotation. A whole circle has a whole rotation, which is 360 degrees.
The radius of a circle is half the diameter.
The radius of a circle is half its diameter (the measure of the circle from one side across to the other).
180 degrees, if you mean a half circle
180 degrees.
Radius is calculated by dividing diameter by two. Measure the distance across the circle then divide it in half for example: You measure the distance across the circle (the diameter) = 6, then 6 divided in half, the radius is 3.
Half of the circle is an arc
a half circle and a circle