What is the circumference of a 4 ft diameter circle?

So C=22/7*4. Calculating C=12.57142857. Or C=12.57. In feet this comes out to be about 12.57 feet.

What is the circumference of a 4 ft radius circle?

Answer: The circumference of a circle with a radius of 4 is 8 π.

What is the circumference with a diameter of 4?

which can be calculated to 12,566 cm.

How many inches is a 4ft circle?

2 Answers By Expert Tutors. 4ft * 12 in / ft = 48 in.

What is the diameter of 4?

Circumference & Areas

How do you make a 4 foot circle?

Video quote: If you ever need to draw large circles or curbs. I need as a straight piece of wood or anything long straight two clamps a pencil. And a screw. And what we do is we clamp the pencil to one side.

What is the radius of 4 diameter?

Use the diameter to find the radius by dividing the diameter by 2. For example, if the diameter is 4, the radius would be 2.

How do you find a circumference?

To calculate the circumference, you need the radius of the circle:

1. Multiply the radius by 2 to get the diameter.
2. Multiply the result by π, or 3.14 for an estimation.
3. That’s it; you found the circumference of the circle.

What is the diameter of 4cm?

Hence, diameter of the circle with radius as 4 cm is 8 cm.

How do you find the circumference and area of a circle?

Video quote: And the formula for finding the circumference of a circle with radius r is c equals 2 pi r or 2 times pi times r.

What is the circumference of a circle with diameter?

The circumference of a circle can be calculated using either of the following formulas: C=𝜋d or C=2𝜋r. We know that the diameter of the circle is 8 cm, and an approximation for pi is 3.14, so we can plug these values into the formula C=𝜋d. The formula becomes C=(3.14)(8), which simplifies to 25.12.

Is circumference the same as radius?

Radius, Diameter and Circumference



The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.

Is the circumference of a circle the same as the perimeter?

The length of a straight-sided shape’s outline is called its perimeter, and the length of a circle’s outline is called its circumference.

How do you visualize the circumference of a circle?

Video quote: Saw pi is equal to circumference divided by diameter. The approximate value of pi is 3.14 or 22 over 7. From the concepts discussed pi is equal to circumference divided by diameter.

How do you find the circumference of a perimeter?

Learn that the perimeter of a circle has its own special name, called “circumference.” The symbol is a capital C. It is calculated using the formula Pi x diameter, or 3.14 x d = C. It can also be calculated by Pi x (2 x radius) = C or 3.14 x (2 x r) = C.

How do you find the circumference using the perimeter?

Video quote: What is its circumference okay time for a shiny new formula C is equal to pi times D let's replace the PI symbol with its actual value. So we get c is equal to 3.14 times D.

How do you find the circumference of a circle without the radius?

If you know the diameter instead of the radius, use the formula πd, where d is the diameter, to get the circumference. Know the area of the circle instead? Find its circumference by dividing the area by π, taking that number’s square root, and multiplying it by 2π.

Is the circumference of a circle the same as the area?

The circumference (C) of a circle is its perimeter, or the distance around it. The area (A) of a circle is how much space the circle takes up or the region enclosed by the circle.

Why is the circumference of 2 pi r?

Since the diameter is twice the radius, the circumference of a circle is a product of pi and 2r, i.e. 2(pi)*r.

Is the circumference of a circle always 360?

Another way to think of the curve that encloses a circle is through the 360 degree arc of that curve. Thus, the circumference of a circle is the length of the 360 degree arc of that circle.

Why is the circumference of a circle?

Video quote: It will look something like this as we know this red boundary of the circle will be its perimeter. We have a special name for the perimeter of a circle. It's called the circumference of the circle.