For a circle, area = Pi x radius2
Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)
The radius of turn can be determined using the formula ( R = \frac{V^2}{g \cdot \tan(\theta)} ), where ( R ) is the radius, ( V ) is the velocity of the object, ( g ) is the acceleration due to gravity, and ( \theta ) is the angle of bank for an aircraft or vehicle. Alternatively, for circular motion, the radius can also be calculated using the centripetal acceleration formula ( a_c = \frac{V^2}{R} ). By rearranging this formula, you can solve for ( R ) if you know the velocity and the centripetal acceleration. In practical applications, you may also measure the turning path directly or use GPS data for more precise calculations.
The dish end area can be calculated using the formula for the area of a circle, as dish ends are typically circular. The formula is ( A = \pi r^2 ), where ( A ) is the area and ( r ) is the radius of the dish end. If you have the diameter, you can find the radius by dividing the diameter by 2. Thus, the area can also be expressed as ( A = \frac{\pi d^2}{4} ) if using diameter ( d ).
Formula of Circumference of a circle: 3.14*Diameter of the circle. You could also do: 3.14*3.14*radius.
The circumference of a lampshade can be calculated using the formula ( C = 2\pi r ), where ( r ) is the radius of the lampshade's base. If you know the diameter, you can also use ( C = \pi d ), where ( d ) is the diameter. To find the circumference, measure the base's radius or diameter and apply the appropriate formula.
D= 2r where r= radius. Also Circumference/pi = D
The size of a sphere can be measured using its radius, which is the distance from the center of the sphere to any point on its surface. Another common measurement is the diameter, which is twice the radius and represents the distance across the sphere through its center. Additionally, the volume of a sphere can be calculated using the formula ( V = \frac{4}{3} \pi r^3 ), where ( r ) is the radius. Surface area can also be measured with the formula ( A = 4 \pi r^2 ).
Surface area (SA) = (2 x pi x radius x h) + (2 x pi x radius squared) also the formula for an open cylinder includes: (2x radius square x height) + (pi x radius square)
Aryabhatta found area of circle as pi*d^2/4 which is equal to pi*r^2. He gave direct results in his book aryabhattiyam. He also stated volume of sphere as 1.776pi*r^3, which is approximately correct.
To calculate this you will need the diameter of the circle. The formula is: diameter/2*pi If you don't know the diameter you can also use the area of the circle: Sqrt(Area/pi) = radius
you must know the radius also. Then use the formula arc = 2 x 3.14 x radius x angle / 360
1. The radius of a circle is half of its diameter.2. The radius can also be calculated from its circumference (C).Method: Divide the circumference by Pi, this will give you the diameter. Then divide the diameter by 2 to get the radius (r).Formula: r = C/2π3. The radius can also be calculated from the area of the circle. Area = π x r2So, divide area by Pi, then the radius will be the square root of the answer.For more information, try the Related links below.