Radius
The radius is a term used in geometry to describe the distance between the center of a circle to any point on its circumference
The radius is a term used in geometry to describe the distance between the center of a circle to any point on its circumference. It is denoted by the letter “r”.
To find the radius of a circle, you can use the following formulas:
1. If you know the diameter (d) of the circle, you can find the radius (r) by dividing the diameter by 2.
r = d/2
2. If you know the circumference (C) of the circle, you can find the radius (r) by dividing the circumference by 2π (pi).
r = C / (2π)
3. If you know the area (A) of the circle, you can find the radius (r) by taking the square root of the ratio of the area to π.
r = √(A/π)
It’s important to note that the radius is always half the length of the diameter, and it is a crucial value for various calculations involving circles, such as finding the circumference, area, or the length of an arc.
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