OK, SO to find the area of a circle, you find the radius (half of the diameter), and fit it into the equation πr2=A where r equals radius and A = area. The perimeter of a circle is π multiplied by the diameter. π is ≈ 3.1415296.
Use a ruler and measure the middle of the circle and divide in half.
If you know the area, you can find the radius --> A = (pi) * r^2
If you have the radius, you can find the circumference --> C = (pi) * 2 * r
To find the area of a circle, the formula is pi*r2, and the circumference is 2pi*r Now plug in the information given. Circumference is 50pi. 50pi = 2pi*r Divide both sides by pi. 50=2*r Divide both sides by 2. 25 = r The radius equals 25. Now to find the area, using pi*r2. We know the radius is 25. pi*(25)2 Find the square of 25. pi*625 The area of the circle is 625pi square units (about 1963.5 square units)
if you want me to answer this i need to know the shape, or dimensions
You have to know how deep the pool is....and is it a perfect circle? We know the diameter of the pool & therefore the radius & with the aid of Pi we can find the circumference, but without knowing the depth of the water the Q cannot be answered.
Measure its area in square yards: If it is a rectangle, then Length * Width If it is a circle then pi*r2 where r is the radius If it is a more complicated shape then partition it into smaller, less complex shapes. Finally, Thickness = Cubic yards/Area and this measure will be in yards. Multiply this by 36 to get the thickness in inches.
Volume equals circumference cubed over six pi squared. V = C3/6(pi2).
To find the diameter of a circle, you will either need to know the area or its circumference. If you know the area: diameter = 2 x squareroot(area / Pi) If you know the circumference diameter = circumference / Pi
Divide its circumference by 2*pi which will give the radius of the circle. Area of the circle then is pi*radius squared
You dived the area by the circumference of the circle.
If you know the circumference of a circle, you can find the radius by dividing the circumference by the value of Pi (3.14159...)
We know that the area of a circle is pi * r2. We also know that the circumference of a circle is pi * d. Therefore, when you know the circumference of a circle and want to know the area, divide the circumference by pi to give you the diameter of the circle, divide the diameter by 2 to give you the radius, square the radius and then multiply by pi to get the area. So, 10/pi = 3.183. 3.183/2 = 1.5915. 1.59152 = 2.533 2.533 * pi = 7.958 to 3 decimal places. The area of your circle is therefore 7.958cm2.
To find the circumference of a circle, you need only know the radius or diameter of the circle. The circumference of a circle is calculated as 2 x Pi x radius OR Pi x diameter. Pi is approximately 3.1415926.
The circumference of a circle is the length of the circle's perimeter.
radius = circumference/(2*pi)area = pi*radius2So Area in terms of Circumference is A = pi [C/2pi]2or (circumference)2/4 pi
Divide the known circumference by pi to find the diameter of the circle.
It depends on what you want to convert the area of the circle into.
Divide the area by pi, which gives you the square of the radius. Take the square root and multiply by 2 pi and you have the circumference.
By dividing its circumference by 2*pi will give the radius of the circle and its area = pi*radius2