Yes
A semi-circle
The center of a circle is the point from which all points on the circle are equidistant.
The scale is the numerical system that is used to define the axis of a graph.
a straight line passing from side to side through the center
a numerical quantity that is not a whole number (e.g., 1/2, 0.5). • a small or tiny part, amount, or proportion of something:
True
it means a bunch of terms put togather without an equal sign a term is a number that may or may not have a variable it can also have either a positive or negetive sign in front of it
A semi-circle
The circumference of a circle is the distance around it.
The center of a circle is the point from which all points on the circle are equidistant.
The scale is the numerical system that is used to define the axis of a graph.
u define a circle by asking www.dictionary.reference.com
diameter
a circle has one face, no vertexes ( or point ), and one curved edge
Two points do not provide enough information to define a circle: a minimum of three points is required to uniquely define a circle unless one of the points happens to be the centre and the other is on the circle. In that case, however, it is necessary to know which is which.
Ratio of the perimeter of a circle (circumference) to its diameter
You can define a circle as the locus (set) of all points equidistant from a given point.