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Circumference of a circle = 2*pi*radius or pi*diameter

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Q: What is the circumfernce of a circle 20 inches using 3.14?
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Related questions

What is the area of a circle with a radius of 10 in using 3.14 for pi?

Using 3.14 as Pi the area of circle is: 314.0


What is the surface area of a circle with a circumference of 314 inches?

Circumference = 314 inches implies radius = 49.97 inches and so area = 7846.02 sq inches (approx).


What is the radius of a circle that has a circumference of 314 inches?

Approximatly 50inches


What is the area of a circle with a diameter of 10 inches in circular inches?

100pi, or approximately 314.


What is the circumference of a circle with an area of 314 in2?

Tells you the answer is 2*sqrt(314*pi) inches, which is approximately 62.82 inches Seriously though. Use metric units in maths it makes everything just work!


How do you get the circumference out of the area?

you divide by pi (3.14) then take the square root, then multiply by 2 and multiply by pi (3.14)...in that order i.e. if you have a circle with area of 314 square inches, you take the 314 and divide by 3.14...you get 100...then you take the square root of 100...you get 10...then you multiply by 2...you get 20...then you multply by 3.14...you get 62.8 inches...thats the circumference of a circle with an area of 314 square inches


How many yards are 314 inches?

There are about 8.7 yards in 314 inches.


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 diameter of a circle if the circumference 314 feet?

Diameter = 314/pi feet


If the area of a circle is 314 square inches what is the circumference of the circle?

62.8 inches. the formula for a circle's area is a = pi x r squared. substitute 3.14 for pi and 314 for a. 314 = 3.14 x r squared (divide both sides by 3.14) v 100 = r squared (find the square root of both sides) v r = positive or negative 10 . since it stands for the radius of a circle, it has to be positive. now that you know the circle's radius, you can solve the circumference formula, c = 2 x pi x r. c = 2 x 3.14 x 10 c = 62.8


What is the radius of a circle if its area is 314?

9.9975


What is the diameter of a circle whose area is 314 cm square?

Using pi as 3.14 it works out that the diameter is 20 cm