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How to calculate diameter using circumference and radius?

Anonymous

∙ 15y ago

Updated: 12/21/2022

well if the radius is given then the diameter is : d=2r.

as for in a circle the diameter is : d=2(pi)r

pi=3.14

Wiki User

∙ 15y ago

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How do you calculate the diameter or radius of each circle?

Using the Circumference And Area.

What is the formula to calculate circumference using radius?

Circumference = 2*pi*radius

How do you find the diameter without the circumference?

The diameter of a circle can be found without the circumference using the formula d = 2r. This formula requires that you know the radius of the circle which is half of the diameter. To calculate the diameter you need to multiply the radius by 2. For example if the radius of the circle is 4 then the diameter would be 8 (4 x 2 = 8).You can also find the diameter of a circle if you know the circumference. To do this use the formula c = d. By rearranging the equation you can calculate the diameter as d = c/. For example if the circumference of the circle is 12.5 the diameter would be 4 (12.5/ = 4).

If the circumference of a circle is increased by 50 then the area will be increased by?

there is no constant that will calculate this, since circumference is calculated with only radius and area with radius squared. you will have to calculate the radius using the initial circumference and then the radius again for the new circumference (with the 50 added). then calculate an area for each radius..then you can see the increase.

What the circumference for ft and using 3.14?

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

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