Table of Contents
How can I calculate radius?
How to Find the Radius of a Circle?
- When the diameter is known, the formula for the radius of a circle is: Radius = Diameter / 2.
- When the circumference is known, the formula for the radius is: Radius = Circumference / 2π
- When the area is known, the formula for the radius is: Radius = ⎷(Area of the circle / π)
What is the radius of 40cm?
Circles (basic)
| Diameter | Circumference(approx) | Circumference |
|---|---|---|
| 8 cm | 24 cm | 25.12cm |
| 20 cm | 60 cm | 62.8cm |
| 40 cm | 120 cm | 125.6cm |
| 3m | 9m | 9.42m |
What is the radius of 16m?
this question answer is 8m.
What is the radius answer?
Radius formula is simply derived by halving the diameter of the circle. When we connect a point on the circumference of a circle to the exact centre, then the line segment made is called the radius of the ring. The distance between the center of the circle to its circumference is the radius.
How do I find the radius of a circle from the area?
To find the radius, divide the area by pi, then take the square root.
How do you find the radius of a circle with an equation?
The center-radius form of the circle equation is in the format (x – h)2 + (y – k)2 = r2, with the center being at the point (h, k) and the radius being “r”. This form of the equation is helpful, since you can easily find the center and the radius.
What is the area of 40cm diameter?
Q. What is the area of a circle with a radius of 40cm? Hence, area of the circle = 5024 cm square.
What is the diameter of 16cm?
162=8 centimeters.
What is the circumference of 15m?
47.1 in
15 in x 3.14 = 47.1 in .
What is radius of circle in simple words?
Radius of a circle is the distance from the center of the circle to any point on it’s circumference. It is usually denoted by ‘R’ or ‘r’. The area and circumference of a circle are also measured in terms of radius.