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How do you find the radius when given the circumference?

How do you find the radius when given the circumference?

To find the radius from the circumference of a circle, you have to do the following:

  1. Divide the circumference by π, or 3.14 for an estimation. The result is the circle’s diameter.
  2. Divide the diameter by 2.
  3. There you go, you found the circle’s radius.

What is the radius of a circle if the circumference is 12 pi?

Explanation: If r is the radius of a circle, then its circumference is 2πr and area is πr2 . or r=12π2π=6 cm.

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What is the radius of 12cm?

The diameter is twice the radius (by definition). So in our case, since the diameter is 12cm, the radius is 6cm.

What is the radius of the circle when the circumference of the circle is 25.12 Use 3.14 for ∏?

8cm
Correct answer: when we divide 25.12 by 3.14 we get 8, so our final answer is 8cm.

Is the radius half the circumference?

Finding the Diameter or Radius The circumference of a circle is equal to pi times the diameter. The diameter is two times the radius, so the equation for the circumference of a circle using the radius is two times pi times the radius.

What is the radius of a 13cm circle?

∴ , the radius is 132 units or 7.5 units.

What is the area when the circumference is 12?

How do you find the circumference and area of a circle with diameter of 12 inches? Socratic.

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How do you find the area of a 12cm circle?

The area of a circle is equal to Pi π times the radius r squared. Substitute in the value of the radius r=12 into the formula for the area of a circle. Pi π is approximately equal to 3.14 .

What is the area of a 12cm square?

Thus, the area of the square is 144 cm2.

What is the radius of the semicircle if the circumference of the semicircle is 28.26 cm answer?

What is the radius of the semicircle if the circumference of the semicircle is 28.26 cm? * 2 points. 5.49 cm.

What is the radius of a circle with a circumference of 10 cm?

To find the radius of a circle with a circumference of 10 centimeters, you have to do the following: Divide the circumference by π, or 3.14 for an estimation. The result is the circle’s diameter, 3.18 centimeters. Divide the diameter by 2. And there you go, the radius of a circle with a circumference of 10 centimeters is 1.59 centimeters.

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How do you find the circumference of a 1m circle?

To calculate the circumference of a circle with a radius of 1 meter, simply follow these steps: Multiply the radius by 2 to get the diameter of 2 meters. Multiply the result by π, or 3.14 for an estimation. And there you go; the circumference of a circle with a radius of 1 meter is 6.28 meters. How do I find the circumference of a cylinder?

How do you calculate the radius of a circle in Excel?

This tool will calculate the radius of a circle from the circumference, and will convert different measurement units for circumference and radius. Formula. The formula used to calculate the circle radius is: r = C / (2 · π) Symbols. r = Circle radius; C = Circle circumference; π = Pi = 3.14159… Circumference of Circle

What is the distance from the center of a circle?

The distance from the center of a circle to any point on the circle is called the radius of this circle.A radius of a circle must be a positive real number. The circle with a center O O and a radius r r is denoted by c(O,r) c ( O, r).