Radius Labeled Math
In the above diagram o is the center of the circle and and are radii of the circle.
Radius labeled math. The diameter is always twice the radius so either form of the equation works. The radius is half the length of the diameter. A π 286 225 a π 286 225. The plural of radius is radii.
The radius of the circle is a line segment from the center of the circle to a point on the circle. Radius of a circle this distance is called the radius of the circle. In this example d 12 3 14 or the diameter is equal to twelve divided by 3 14. The plural form is radii pronounced ray dee eye.
1 07 2 0 535 km 535 m 1 07 2 0 535 k m 535 m. The radii of a circle are all the same length. A 899 202 3572 m2 a 899 202 3572 m 2. An arc is a part of a circle.
First find half the diameter given to get the radius. Area of a circle. A π r2 a π r 2. Circumference of a circle.
Plug in the radius into our formula. C πd 2 πr. In the figure above drag the orange dot around and see that the radius is always constant at any point on the circle. The d represents the measure of the diameter and r represents the measure of the radius.
A π 5352 a π 535 2. The diameter is two times the radius so the equation for the circumference of a circle using the radius is two times pi times the radius. Sometimes the word radius is used to refer to the line itself.