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Q: Approximately what is the circumference of a circle if the diameter is 7?
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How do you estimate the circumference of a circle when you know the diameter?

The circumference of a circle is given by π × diameter. π =3.14159265...... It is approximately 3.14 which, itself, is approximately 22/7. To estimate the circumference of a circle, multiply the diameter by 3 and add the diameter divided by 10 and that division divided by 2; this will give you 3.15 × diameter which is fairly close. Alternatively, multiply the diameter by 22 and divide by 7.


What is the circumference of a circle if the diameter is 7?

Just multiply the diameter times pi. Pi is approximately 3.1416.


Circumference of a circle?

Boundry of circle is called circumference.


How to calculate the diameter of a circle when the circumference of the circle is 7?

pi*diameter = circumference Rearrange the formula so as the diameter is the subject of the formula: diameter = circumference/pi diameter = 7/pi = 2.228169203


What is the circumference of a circle if the diameter is 7 ft?

Circumference of the circle = 7*pi feet


What is the circumference of a circle with the radius of 3.5 yards?

The equation for a circle is PiD. The diameter is double the radius, so it is 7 yards in this case. The circumference is 7*PI. Which is approximately 21.98.


How can you determine the circumference of a circle if you know it diameter?

The circumference of a circle (C) is the diameter (D) times pi (approximately 3.14 or 22/7). So, the equation would be: C=D*3.14. For example, if the diameter was 4', the circumference would be 12.56'.


If a circle has a diameter of 28 what is the circumference of it?

The circumference of a circle with a 28 unit diameter is: 88cir=dx22/7


What is the diameter of a circle if the circumference is 22?

The diameter is 7


What is the relationship between the cicumfernce and diammeter of a circle?

(Circumference) divided by (diameter) = (pi) (Circumference) = (diameter) times (pi) (Diameter) = (circumference) divided by (pi) (pi) = an irrational number, approximately = 3.14 or 22/7 .


What is the diameter of a circle if the circumference is 7 inches?

7/pi = diameter


If the diameter of a circle is 7 inches what is the circumference?

circumference of a circle = pie times the diameter = 22/7 x diameter = 22/7 x 7 inches = 22 inches