The arc.
Arcs are part of a circumference of a circle cut into pieces by chords, tangents, secants, etc.
It splits
Radii is the plural of the word radius.If you have a circle, bisect it with a straight line - that is the diameter. Cut that in half - that is the radius. The radius is the distance from the center to the edge of the circle.A radius is one half the diameter of a circle ( the straight line distance from one point of the edge of a circle to the other side, directly in the middle). The plural form of radius is radii.
Divide the circle's circumference into six 60 degree angles and join the angles to its centre then cut it into 6 equal pieces.
easy pi 3.141592654 or 3.14 times the diameter then divide by four first you find the entire circumference then cut into halves or quarters
measure the distance around a circle and divide it by the distance across the circle through the center, you will always come close to a particular value, depending upon the accuracy of your measurement. This value is approximately 3.14159265358979323846... We use the Greek letter (pronounced Pi) to represent this value. The number goes on forever. However, using computers, mathematicians have been able to calculate the value of to thousands of places.The distance around a circle is called the circumference. The distance across a circle through the center is called the diameter. is the ratio of the circumference of a circle to the diameter. Thus, for any circle, if you divide the circumference by the diameter, you get a value close to . This relationship is expressed in the following formula: where is circumference and is diameter. You can test this formula at home with a round dinner plate. If you measure the circumference and the diameter of the plate and then divide by , your quotient should come close to . Another way to write this formula is: where · means multiply. This second formula is commonly used in problems where the diameter is given and the circumference is not known (see the examples below).The radius of a circle is the distance from the center of a circle to any point on the circle. If you place two radii end-to-end in a circle, you would have the same length as one diameter. Thus, the diameter of a circle is twice as long as the radius. This relationship is expressed in the following formula: , where is the diameter and is the radius.Circumference, diameter and radii are measured in linear units, such as inches and centimeters. A circle has many different radii and many different diameters, each passing through the center. A real-life example of a radius is the spoke of a bicycle wheel. A 9-inch pizza is an example of a diameter: when one makes the first cut to slice a round pizza pie in half, this cut is the diameter of the pizza. So a 9-inch pizza has a 9-inch diameter. Let's look at some examples of finding the circumference of a circle. In these examples, we will use = 3.14 to simplify our calculations.Example 1: The radius of a circle is 2 inches. What is the diameter? Solution: = 2 · (2 in) = 4 inExample 2: The diameter of a circle is 3 centimeters. What is the circumference? Solution: = 3.14 · (3 cm) = 9.42 cmExample 3: The radius of a circle is 2 inches. What is the circumference? Solution: = 2 · (2 in) = 4 in = 3.14 ·(4 in) = 12.56 inExample 4: The circumference of a circle is 15.7 centimeters. What is the diameter? Solution: 15.7 cm = 3.14 · 15.7 cm ÷ 3.14 = = 15.7 cm ÷ 3.14 = 5 cmCourtesy of Ms. Goodies Math PageA circle does not have a volume. It is a 2-dimensional thing, which has an area. and a perimeter which has a length (circumference). A cylinder, like a tube with closed ends has a volume equal to the area of the base (usually a circle, dicussed above) multiplied by the length of the cylinder.
To achieve a perfect circle by cutting a circle, you would need to use a tool like a compass or a circle cutter to carefully trace and cut along the desired circumference. This precise method ensures that the new circle maintains the same shape and size as the original circle.
As per the dictionary, a circular chart cut by radii into segments illustrating relative magnitudes or frequencies -called also circle graph. See the related link for verification.
Data collection
CIRCUMFERENCE = pi x D = 3.14 x 12 = 37.68 feet
radius
There is no 2D shape that makes a sphere, since a sphere is 3D by definition. The closest thing to a 2D sphere is a circle.