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# How do you figure out the diameter if they only show circumference?

Updated: 9/19/2023 Wiki User

13y ago

Circumference equals pi times the diameter, so you would divide by pi. (3.14159265...) Wiki User

13y ago   Earn +20 pts
Q: How do you figure out the diameter if they only show circumference?
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### What is the diameter of a circle with a circumference of 128 feet?

Diameter- 128 / pi = 40.7436654 or 41 feet, I had this on my homework, do you know how to show the work though? Tricky.

### Can you show me a written answerfrom top to bottom on how to find the diameter radius and circumference and area of a circle of 3.14 is the diameter?

diameter: you have stated that it is 3.14 radius: half the diameter, therefore 1.57 circumference: pi times the diameter, therefore 3.14 x 3.14 = 9.86 area: pi times the radius squared, therefore 3.14 x 2.46 = 7.72

### How do you show your work for the surface area of a cylinder whose answer is 282.6?

Perform and write down each of these steps: -- Multiply the radius of the circular end of the cylinder by 2 to get its diameter. -- Multiply the diameter of the cylinder's round end by (pi) to get its circumference. -- Multiply the circumference of the cylinder's round end by its length. -- Point out that the result is 282.6 .

### How do you find the circumference of a circle from the radius?

Square the radius and multiply the result by 3.14. You may want additional digits of pi for greater precision, but that's the basic idea.The formula is &pi;r&sup2; (that's "pi r squared," if the character doesn't show up properly).ANSWER:The above answer is wrong! The above gives the area of a circle, not the circumference. Besides pie are round, cornbread are square. Pi = 3.1416 as stated above.The circumference of a circle is 2 times the radius times pi .This is because pi for all circles is the circumference divided by the diameter. So, pi times the diameter equals the circumference. The diameter is twice the radius.

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### How do you pass Game Show Island helicopter part?

Only idiots cant figure it out

### If the circumference is 72 inches what is the diameter?

diameter = pi / circumference diameter = 72 / 3.1415926 = 22.918312 inches ************* You've reversed the substitutions for the variables from your first line in the second line (pi/72 is 0.04365, not 22.918312). Although your value for the diameter is OK, your formula does not support it. The formula for circumference is C=2*pi*r (read as "C=two pi R"), or more simply, C=pi*d. Therefore, if both sides are divided by pi (to get d on one side of the equation only) you get C/pi=d. Using the value given for C and if pi is rounded to 3.14159, the answer is d=72/3.14159; d=22.91833 I went to that length to show how to restate the standard equation. That ability is a fundamental skill in math, and I'd hazard to guess that the asker could have figured out the answer if someone had shown them how to do that. If not, then maybe it will help someone else in the future.

### What is the circumference of a circle with a radius of 9cm show circulation?

Circumference of the circle: 2*pi*9 = 18*pi cm

### 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.

hell no

Never mind!

### Can you show a pic?

It is a closed figure