What is the circumference if the radius is 5 m?
Explanation: The formula for the circumference of a circle is 2πr so all we have to do is plug in 5 for our radius: 2π(5) which can be simplified to 10π .
What is the circumference of a 5 cm circle?
The circumference of a circle is equal to Pi π times the diameter d . Since the diameter d is equal to 2 times the radius r , the formula for circumference using radius is 2πr 2 π r .
What is the formula to find radius?
radius is always half the length of its diameter.
- For example, if the diameter is 4 cm, the radius equals 4 cm ÷ 2 = 2 cm.
- In math formulas, the radius is r and the diameter is d. You might see this step in your textbook as r = d 2 {\displaystyle r={\frac {d}{2}}} .
How to calculate the circumference of a radius of 5?
Circumference = 2 x Radius x π. π = Pi = 3.14, thus, the math to calculate the circumference of a circle with a radius of 5 is: 2 x 5 x 3.14 = 31.4. And the answer to the circumference of a circle with a radius of 5 is approximately: ≈ 31.4.
How big is a 5 meter diameter circle?
How far around is a circle that is 5 meters across? The circumference of a circle is pi times its diameter. The diameter of a circle is the distance from one edge to the other, passing through the center. It is twice the radius.
How is the circumference of a circle related to its diameter?
The circumference of a circle is pi times its diameter. The diameter of a circle is the distance from one edge to the other, passing through the center. It is twice the radius.
How to calculate the circumference of a meter?
1 Multiply the radius by 2 to get the diameter of 2 meters. 2 Multiply the result by π, or 3.14 for an estimation. 3 And there you go; the circumference of a circle with a radius of 1 meter is 6.28 meters.