The measurement of the outside edge of a circle is known as the circumference.
The centre of a circle is simply called the cnetre. The edge may called the perimeter, the circumference or the edge.
The length of the edge of a circle.
A tangent is always perpendicular to the radius of a circle. A radius is a straight line going from the center of the circle to the circumference (edge) of the circle. A tangent is a straight line outside the circle that touched the circle at one (and only one) point. When a tangent touches the outside edge of the circle at the same point where a radius touches the edge of the circle, the angle between the radius and tangent line is 90 degrees meaning they are perpendicular.
The radius of a circle or sphere is a straight line from the centre to the edge.
The outer edge of a circle is called the circumference.
The measure from the center of a circle to its edge is the radius.
A piece of an edge of a circle is called an ARC.
If you draw a line from the center of a circle to the edge of a circle, you have drawn the radius of the circle. If you draw a line from the edge of a circle through the center of the circle and on to the edge on the opposite side, you have drawn the diameter of a circle. The radius of a circle is one half the diameter of a circle.
The diameter of a circle is the length of a straight line from a point on the edge of the circle passing through the center of the circle and onto a point on the opposite edge of the circle. The radius of a circle is the length of a straight line from the center of a circle to a point on the edge of the edge of the circle. So the radius of a circle is half its diameter, in this case 8cm.
A chord
diameter.
It is the circle's circumference
The measurement of the outside edge of a circle is known as the circumference.
That's the diameter.
The centre of a circle is simply called the cnetre. The edge may called the perimeter, the circumference or the edge.
4 units The radius of a circle is the distance from the center to the edge. The diameter of a circle is the distance from the edge, going through the center, to the opposite edge.