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What is the circumference of a circle with a diameter equaling with 7 centimeters in length use 314 for pi?
If you mean 3.14 for pi then the circumference is: 7*3.14 = 21.98 cm
What formula do you use if you know the diameter of a circle and want to find the circumference?
circumference of a circle = pi * diameter.
How do you use the diameter to find the circumference of a circle?
Multiplying the diameter by pi (approx 3.1416) will give you the circumference of the circle.
How do you calculate circumference of a circle?
You use a protractor.
How do you find the radius of a circle with a circumference of 73.5?
use the circumference formula of a circle circumference of a circle=2*pi*r pi=22/7 r-radius of a cirle Now the answer for the problem is 11.69
What is the diameter of a circle whose circumference is 314?
The diameter of a circle whose circumference is 314 is about 1 (99.95).
What is the circumference of a circle with a diameter equaling with 7 centimeters in length use 314 for pi?
If you mean 3.14 for pi then the circumference is: 7*3.14 = 21.98 cm
What is the radius of a circle if its circumference is about 314 feet?
You have to use the equationcircumference is equal to the radius multiplied by "pi" multiplied by twoC = 2 * π * rBecause your circumference is a known value, the only unknown value left is the radius. Simply solve the equation.314 / (2*π) = rr = 50.0 feet
What formula do you use if you know the diameter of a circle and want to find the circumference?
circumference of a circle = pi * diameter.
What is the formula for the diameter or a circle?
If you are given the radius of the circle, you can use the formula: diameter = 2*radius If you are given the circumference of the circle, you can use the formula: diameter = circumference/pi
What is the ciruumference of a circle?
The circumference is essentially the perimeter of the circle, or the distance around the circle. To calculate the circumference of a circle, use the formula C = 2 * pi * r. Circumference = two times pi times the radius of the circle.
How do you use the diameter to find the circumference of a circle?
Multiplying the diameter by pi (approx 3.1416) will give you the circumference of the circle.
What are the two formulae you can use to find the circumference of a circle?
Circumference of a circle = 2*pi*radius or pi*diameter
Why do we use pi?
The ancient civilisations, 4000 years ago, Sumerians, calculated 'pi' to be 3.141592..... The story goes ; A donkey on a tether ( radius) was driven around in a circle (Circumference) to drive water up from a well. They noticed that however, long the tether (radius) was , the correspodning circle(circumference) was always in the same ratio. ; pi = 3.141592..... This can be mathematically expressed as Circumference is directly proportional to the diameter. or 'C' is directly proportional to 'd ' This can be equated with a constant C = k d Algebraically rearranged as k = C/d Whatever the dimensions of a given circle were/are 'k', the constant, was always found to be 3.141592.... Much later after the Sumerians, the Classical Greeks, gave the name 'pi' to this constant. 'pi' being the lower case classical Greek letter 'p' and refers to **P**roportion. Hence 'pi' , today is used as this constant of proportion for circles. 'pi' is an irrational number, which means in casual terms, the decimal digits go to infinity and there is no regular order in the decimal digits. On 'Supa-Dupa' computers' pi' has been calculated to some 50 billion places and still going. NB Remember the circle equations. C = pi d C = 2 pi r ( d = 2r) A(area) = pi r^(2) When learning circle calculations you are probably given pi as 3.14, or .3.1416. or 22/7, but these are only approximate values, and NOT exact values. Hope that helps!!!!!
How do you find and use the circumference of a circle?
The circumference of a circle is the distance around the outside of the circle. It could be called the perimeter of the circle. The circumference of a circle can be found by multiplying pi ( n = 3.14 ) by the diameter of the circle. If a circle has a diameter of 4, its circumference is 3.14*4=12.56. If You know the radius, the diameter is twice as large.
How do you calculate circumference of a circle?
You use a protractor.
Why would you use a formula to determine the circumference of a circle?
There is a constant relationship between the radius of a circle and its circumference. This is expressed in a formula.
