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C = 2 * pi * r
C is the circumference of the circle;
pi is approximately 3.1416;
r is the radius of the circle;
2r is the diameter, so C = d * pi as well.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoThe formula for the circumference of a circle is: Circumference = πdiameter OR (π)2radius
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How do you measure the circumference of the circle?
The equation for the circumference of a circle is pi times radius squared.
What is the circumference of a circle with a radius of 15.5cm?
the equation for the circumference is Pi * double the radius which is 3.1416 * 15.5 * 2 The circumference of a circle with a radius of 15.5cm is 97.3cm.
What is the equation to find the perimeter of a circle?
Circumference ("perimeter") of a circle = (pi) x (diameter of the circle)
Is circumference of a circle the same as the perimeter of a circle?
Yes it is, because both of them are just the distance around the circle, the equation forthe circumference is pi x Diameter.
How does the circumference of a circle change if you double its diameter?
Since the equation for circumference is pi*d then if you double the diameter the circumference will be doubled.
How do you measure the circumference of the circle?
The equation for the circumference of a circle is pi times radius squared.
If you Give a circle with a diameter of 4 what is the circumference?
the equation for the circumference of a circle is 2*radius*pi, or since the radius is half of the diameter 2*radius=diameter, we can simplify the equation to the circumference of a circle=diameter*pi
What is the equation for the circumference and radius?
The equation for circumference is 2(3.14)(r) or 3.14(d) where r=radius and d=diameter. The radius of a circle is half of the circumference, or the distance across the interior of a circle.
What is the equation for getting the circumference of a circle with radius?
2x3.142xr
If the diameter of a circle is 5 what is the circumference?
The equation for determining the circumference of a circle is circumference = pi x diameter. So if the diameter is 5, then the circumference is pi * 5 = 15.71
How do you find the circumference if you have the area of a circle?
Area of a circle = 3.14 * r2 Thus, radius, r = root of ( Area of a circle / 3.14 ) --------- equation 1 Circumference of circle = 2 * 3.14 * r Therefore, from (equation 1), Circumference = 2 * 3.14 * root of ( Area of a circle / 3.14 ). In a nutshell, first find the radius and then the circumference.
A semi circle has a radius of 5 inches. What is the circumference?
Well the circumference equation is 2pi r and a semi-circle is half of a full circle so the circumference is 15.71 inches.
What is the circumference of a circle with a radius of 15.5cm?
the equation for the circumference is Pi * double the radius which is 3.1416 * 15.5 * 2 The circumference of a circle with a radius of 15.5cm is 97.3cm.
What is the equation to find the perimeter of a circle?
Circumference ("perimeter") of a circle = (pi) x (diameter of the circle)
How do you find the circumference when the diameter is 14?
The circumference of a circle is found using the following formula: Circumference of a Circle = Pi x r2 So with these equation in mind we get the following problem. Circumference of a Circle = 3.14 x 14 Circumference of a Circle = 43.96 units
How do you get circumfrence?
The circumference of a circle can be found using the equation c=2πr. For example, if a circle has a radius of 10, its circumference is 20π, or 62.832.
What is the circumference of a circle if the radius is 4.83cm?
The circumference of a circle is given by the equation C=2*pi*r (r being the circle's radius). So, the circumference you're looking for is 30.35 cm.
