Divide the known circumference by pi to find the diameter of the circle.
The circumference is: 32.1
The circumference of a circle with an 81.6 cm diameter is: 256.4 cm
Circumference = 2*pi*radius or diameter*pi
The equivalent of a "perimeter" in a circle is actually called its circumference. To get the diameter, just divide the circumference by pi.
A rhombus is a flexible shape which can range from almost a square to a very narrow shape. A rhombus with sides of x cm can contain a circle with any radius less than x/2 cm. The information in the question is insufficient to determine the radius. And a ratio requires some characteristic of the inscribed circle to be compared to an analogous characteristic of another shape.
all you have to do is take the number 10 and mulitply it by pie which is 3.14 which gives you the answer as 3.140
The formula; 2 * Pi * Radius = circumference Will calculate the circumference of a circle.
find the radius of a circle with circumference of 42.1
The circumference of a circle is the length of the circle's perimeter.
If you know the circumference of a circle, you can find the radius by dividing the circumference by the value of Pi (3.14159...)
Diameter of a circle = circumference/pi
circumference of a circle = 2piradiuis or diameter*pi
Divide the known circumference by pi to find the diameter of the circle.
to find the circumference of any circle, times the diameter(d) by pi and you will get the answers.
When the shape is a circle, then the perimeter is called"circumference".The circumference IS the perimeter of a circle.
The radius of a circle is the distance from its centre to its circumference. If a circle has a radius of r units then the length of its circumference is 2*pi*r units.