The fraction of a circle that an arc covers is the angle of the arc divided by 2*pi radians, or divided by 360 degrees if you prefer Imperial Units.
Use the information you have to find it. -- divide the length of the arc by the total circumference of the circle, or -- divide the central angle of the arc by 360 degrees (a full circle)
In a circle, the circumference and diameter vary directly. Which of the following equations would allow you to find the diameter of a circle with a circumference of 154 if you know that in a second circle the diameter is 14 when the circumference is 44?
A square does not have a radius. A square, with sides of length x units, can have an inscribed circle. Such a circle would have a radius of x/2 units. Or the square could have a circumscribing circle. This would have a radius of x/sqrt(2) units.
A circle with the radius of 21cm would have an area of approximately 1384.74 cm. You would find this by using the equation of pi*(radius^2) = pi*(21^2).
There are 360 degrees around a circle and if an arc covers 45 degrees of the circle then the fraction is 45/360 or 1/8 in its simplest form
The fraction of a circle that an arc covers is the angle of the arc divided by 2*pi radians, or divided by 360 degrees if you prefer Imperial Units.
Use the information you have to find it. -- divide the length of the arc by the total circumference of the circle, or -- divide the central angle of the arc by 360 degrees (a full circle)
That would certainly do it.
the fraction of the circle covered by the arc
Arctic Circle
There are no reindeer in Antarctica, only in the Arctic. You would be much more likely to find reindeer near the Arctic. It is logically impossible to find a mammal living in the Antarctic Circle. Although reindeer would be able to survive in the Antarctic Circle, they would soon develop hypothermia.
71/100
Using a fraction piece with a denominator of 6, we need to find a fraction that, when repeated twice, will cover 4 out of 6 equal parts of a circle. Since 4 out of 6 is equivalent to 2 out of 3, the fraction piece we need is 2/3.
The circumference is 2*pi*radius (not raduis) and this formula is applicable whether the radius is an integer, a fraction, or even an irrational number.
Arctic
Your question is unclear.If you are trying to find a fraction it implies you do not know what it is, otherwise you would not be trying to find it.Fractions are generally reduced to their simplest form for clarity.