answersLogoWhite

0

The formula for calculating the circumference of a circle is 2πr, where r is the radius of the circle and π is 3.1415926535890793 - usually shorted to either 3.1416 or 3.14

So that the circumference of a circle with a radius of 10 units is 62.83 units There are pi radians in a half of a circle. Thus, the measure of a central angle which is a straight line is pi radians. We have a formula that show that the length of an intercepted arc is equal to the product of the angle in radians that intercepts that arc, with the length of the radius of the circle. So we can say that the length of a semicircle is (pi)(r). In a full circle are 2pi radians. So the length of intercepted arc from a central angle with measure 2pi is 2(pi)(r).

User Avatar

Wiki User

16y ago

What else can I help you with?

Related Questions

How do i work out the circumference of a circle from the radius?

The circumference of a circle with a known radius and can calculated using the following formula: C = 2Π(r)


What is A circle has a radius of 6.1cm work out the circumference of the circle?

To calculate the circumference of a circle, you can use the formula ( C = 2\pi r ), where ( r ) is the radius. Given that the radius is 6.1 cm, the circumference is ( C = 2 \times \pi \times 6.1 \approx 38.34 ) cm (using ( \pi \approx 3.14 )). Therefore, the circumference of the circle is approximately 38.34 cm.


Work out the radius of a circle from the circumference?

c=2*pie*r c= circumference r= radius.


What is the radius and the area of a circle?

The radius of a circle is the distance from the center to any point on the circle. The area is the space within the circle. The formula to find the area is πr2. r stands for the radius of the circle. If you want to find the radius, you can work backwards from the area or the circumference, which is the perimeter of the circle. The formula for circumference is 2πr.


How do you show your work to go with how to find the circumference of a circle if the radius is 5?

Circumference = 2*pi*radius In this case radius = 5 units so circumference = 31.4159 units approx.


What is the circumference of a circle if the radius is 4.4 cm?

Work it out the circumfrance of a circle is pie x the diameter!


How do you work out the circumpherence of a circle?

The circumference of a circle is (pi) x (diameter), or (2 pi) x (radius).


How do you work out the circumference of a circle?

Twice the radius times pi or the diameter times pi


How does a diameter work?

it uses to find out thearea and circumference of circle. diameter=2*radius


How do you work out the radius?

C=2*pi*r Radius is the circumference of the circle divided by 2pi. Therefore, if the circumference was C then the following formula works out the radius: r=C/(2*pi)


How do you work out the area if given the circumference?

Assuming the shape concerned is a circle, Radius = Circumference/(2*pi)and thenArea = pi*(radius)2= pi*(circumference)2/(2*pi)2= (circumference)2/(4*pi)Assuming the shape concerned is a circle, Radius = Circumference/(2*pi)and thenArea = pi*(radius)2= pi*(circumference)2/(2*pi)2= (circumference)2/(4*pi)Assuming the shape concerned is a circle, Radius = Circumference/(2*pi)and thenArea = pi*(radius)2= pi*(circumference)2/(2*pi)2= (circumference)2/(4*pi)Assuming the shape concerned is a circle, Radius = Circumference/(2*pi)and thenArea = pi*(radius)2= pi*(circumference)2/(2*pi)2= (circumference)2/(4*pi)


Was does Pi equall?

It is the ratio of the circumference (C) and the diameter (D) of a circle. Using pi and the diameter of a circle, you can work out the circumference.

Trending Questions
How do you find the angle measurements of a triangle if you have the side lengths? What is a simple machine made of a flat surface set at an angle to another surface it is sometimes called a ramp? What do you call a arrow with no arrowhead? You are building a gazebo that has a base in the shape of a regular octagon Each side of the base has a length of 9 feet What is the area of the octagonal floor to the nearest foot? What is a triangle containing a right angle called? How many 4x8 bricks cover 36 square feet? When you are using induction to investigate a pattern you can call your educated guess about the rule of a pattern a? Is it possible for a rectangle to have a perimeter of 1 million miles but an area of less than 1 square mile? Which statement is true regarding the influence of PACs and unions on the legislative process? How many 12x12 tiles in a box? What is the circumference of a circle with a diameter of 30 feet? Is there any difference between white tile mortar and gray tile mortar? What is the volume of cone with the height of 142 and the diameter of 360? The volume a box is 75 cu ft what is possible dimensions? The measure of an interior angle of a heptagon? Which do not belong cube circle pyramid sphere? What is the measure of vertical angles that are supplementary? A point at an end of a segment or a starting point of a ray? What makes a shape a rhombus? Find the lateral area of a regular pentagonal pyramid that has a slant height of 14in and a base side length of 6 in?