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What else can I help you with?
How do you find the radius and diameter of the circle if you know the area?
Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)
Formula of circumference?
Formula of Circumference of a circle: 3.14*Diameter of the circle. You could also do: 3.14*3.14*radius.
Formula for a diameter?
D= 2r where r= radius. Also Circumference/pi = D
Surface area of cylinder formula?
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)
Can you give me information on area of circle made by Aryabhatta in mathematics?
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.
What is the mathematical formula for finding the radius of a circle?
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
How do you find an arc of an angle?
you must know the radius also. Then use the formula arc = 2 x 3.14 x radius x angle / 360
Formula for finding the radius of a circle?
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.
How do you find the formula of the volume of a cylinder with a radius of 8yd and height of 56yd?
You came to the right place.The formula for the volume of any cylinder isVolume = (pi) x (Radius)2 x (Length) .It can also be found in books.
What is the circumference of a circle with the diameter of 15cm?
The formula for the circumference of a circle is C = 2πr where r is the radius. This formula can also be expressed as C = πd where d is the diameter as the diameter is twice the radius. C = 15π = 47.12cm (2dp)
If the radius of a circle is 4 cm then what is the diameter?
The diameter would be 8cm, because the diameter is always double the radius. That's why the formula 2'Pi'r is also known as 'Pi'd.
What happens to the area of a circle when the diameter is halved?
When the diameter of a circle is halved, the radius is also halved since the radius is half of the diameter. The area of a circle is calculated using the formula A = πr^2, where r is the radius. If the radius is halved, the area is reduced to one-fourth of its original size because the radius is squared in the formula. Therefore, halving the diameter of a circle results in the area being reduced to one-fourth of its original area.
