plug in 2 centimeters for r in the formula. So we have (2)(π)(2 cm) which is equal to **4π cm**.

Also, What is the circumference if the radius is 4?

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

Hereof, How do you find circumference with area?

The formula **C = 2√πA** is designed to find a circle’s circumference using the area (A). Alternatively, you can solve the equation A = πR^{2} in reverse to find R, then plug R into the circumference equation.

Also to know What is the radius of a circle with 16 units? So the right answer is **804**.

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

2π10=**20π cm** or about 62.8 cm.

**22 Related Questions Answers Found**

Table of Contents

**What estimate is closest to the area of a circle with a radius of 4 cm?**

What is the area of a circle with radius 4 cm?

Result: The area of a circle with radius 4 is 50.27 | |
---|---|

Formulae: | |

r = 4 d = 8 C = 25.1 |
A = πr^{
2
}= π(d2) ^{
2
}A = C ^{
2
}4π π = 3.1415 A = area C = circumference or perimeter r = radius, d = diameter |

**What is the circumference with a radius of 6?**

If r = 6 cm, the the circumference is c = 2π(6) = **12π cm**, if writing in terms of π. If you prefer a numerical value, the answer rounded to the nearest tenth is 37.7 cm. Suppose you only know the diameter?

**What estimate is closest to the circumference of a circle with a radius of 4 cm?**

The circumference is **8πcm** or 25.12cm .

**How do you find the radius of 16?**

The circumference of a circle is equal to π , which is a number ≈3.14 , multiplied by the diameter of the circle. Therefore, **C=πd** . We can divide both sides by π to see that 16=d .

**What is the radius of a circle is 3 units?**

if the radius is 3, just think of the radius as the half of the diameter, so your answer would be the diameter is **6**.

**What is the diameter of the radius is 16?**

162=**8 centimeters**.

**What is the radius of a circumference of 10?**

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**.

**Would a circle with a radius of 10 cm have the same circumference as a circle with a diameter of 20 cm?**

Radius is half a diameter. Therefore, a 10 cm radius will have a 20 cm diameter so it will **have the same circumference**.

**Which is the area of a circle with a radius of 6 cm?**

What is the area of a circle with radius 6 centimeters?

Result: The area of a circle with radius 6 is 113.1 | |
---|---|

Formulae: | |

r = 6 d = 12 C = 37.7 |
A = πr^{
2
}= π(d2) ^{
2
}A = C ^{
2
}4π π = 3.1415 A = area C = circumference or perimeter r = radius, d = diameter |

**What is the area of a radius of 4 cm?**

The solution to the formula for a 4cm radius is **50.24 cm^2**.

**What is the area of the circle with a radius of 1 foot?**

Answer: **pift^2**(or your third option) is the area of a circle with a radius of 1.

**What is the area if the radius is 6 cm?**

What is the area of a circle with radius 6 centimeters?

Result: The area of a circle with radius 6 is 113.1 | |
---|---|

Formulae: | |

r = 6 d = 12 C = 37.7 |
A = πr ^{
2
}= π(d2) ^{
2
}A = C ^{
2
}4π π = 3.1415 A = area C = circumference or perimeter r = radius, d = diameter |

**What is the area of 6 radius?**

**113.1 square inches** (in²)

**What is the radius of the circle 4cm?**

The length of a diameter is 2r which is why C= πd. Using this formula, we know that r= 4cm. Thus, C= 2(4)π = 8π ≈ **25.13 centimeters**.

**What is the area of a 6 cm circle?**

The area of a circle is equal to **Pi π times the radius r squared**. Substitute in the value of the radius r=6 into the formula for the area of a circle. Pi π is approximately equal to 3.14 . Raise 6 to the power of 2 .

**What is the radius of 18?**

What is the radius of a 18 inch circle? To find the radius, then, we insert 18 in for the circumference. So 18=2∏r. Solving for r gives 9/∏, or **approximately 2.86 inches**.

**What is the radius of the diameter is 4?**

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.

**What is the diameter of the radius is 12?**

First you need to find the radius, the key term to find the radius is diameter=2⋅radius ; therefore the radius r is 122=**6 inches**.

**What is the radius of a circle of 6 units?**

Answer Expert Verified

Given : The diameter of a circle is 6 units. To find : What is the radius of the circle? Substitute the value, Therefore, the radius of the circle is **3 unit**.

**What is radius and diameter?**

While the radius of a circle runs from its center to its edge, the diameter runs from edge to edge and cuts through the center. … Radius and diameter are close friends – **a circle’s radius is half the length of its diameter** (or: a circle’s diameter is twice the length of its radius).

**What is the radius of a circle is 1 unit?**

“Unit” means “**one/single/individual**“. Hence by definition, “unit circle” is taken to mean “a circle of radius 1”. So there’s nothing deep going on mathematically; it’s just a matter of how we use our English words/a manner of speaking. A similar question is “why do pentagons have 5 sides”?