How do you find the radius of a circle from the area?
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How do you find the radius of a circle from the area?
To find the radius, divide the area by pi, then take the square root.
What is the radius of my circle?
Let us use these formulas to find the radius of a circle. When the diameter is known, the formula is Radius = Diameter/ 2. When the circumference is known, the formula is Radius = Circumference/2π. When the area is known, the formula for the radius is Radius = ⎷(Area of the circle/π).
What is the circumference of a circle whose area is 2464 cm square?
Now, circumference of the circle = 2πr = 2 (22/7)(28) = 2(22)(4) = 88(2) = 176m . Therefore, The circumference of the circle is 176 meters.
How do you find the radius of a circle in centimeters?
Divide the diameter by two. 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.
Is circumference the area of a circle?
The area of a circle is given by the formula A = π r2, where A is the area and r is the radius. The circumference of a circle is C = 2 π r. Now we use this to replace r in the first equation: A = π [ C / (2 π ) ]2. When we simplify this, we get A = C2 / (4 π).
What is radius in CM?
Earth’s Equatorial Radius to Centimeter Conversion Table
| Earth’s Equatorial Radius | Centimeter [cm] |
|---|---|
| 0.01 Earth’s equatorial radius | 6378160 cm |
| 0.1 Earth’s equatorial radius | 63781600 cm |
| 1 Earth’s equatorial radius | 637816000 cm |
| 2 Earth’s equatorial radius | 1275632000 cm |
How do you convert radius to centimeters?
Please provide values below to convert centimeter [cm] to Bohr radius [b, a.u.], or vice versa….Centimeter to Bohr Radius Conversion Table.
| Centimeter [cm] | Bohr Radius [b, A.u.] |
|---|---|
| 0.01 cm | 1889725.9885789 b, a.u. |
| 0.1 cm | 18897259.885789 b, a.u. |
| 1 cm | 188972598.85789 b, a.u. |
| 2 cm | 377945197.71578 b, a.u. |