I think you are asking how do you calculate the VOLUME of a disk 250mm with a thickness of 20 mm. If that is so, then find the area of the circle using the Area = pi times radius squared formula and then multiply by the thickness to get cubic millimeters volume.
Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle
To calculate the area of a circle use this formula: pi x r2.
Diameter x Thickness
the area of the circle is Pi X Radius squared
A circle is two dimensional, it has area but not volume.
Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle
To calculate the area of a circle use this formula: pi x r2.
To calculate the area of a circle, you can use the formula A = πr^2, where A is the area and r is the radius of the circle. Simply square the radius, multiply it by π (approximately 3.14159), and you will have the area of the circle.
Diameter x Thickness
To calculate plinth area of a house, you would calculate the thickness of walls that external along with the entire carpet.
the area of the circle is Pi X Radius squared
The area of a circle is: pi times radius squared
go to the related link below Titled (Calculate the Area of a Circle).
A circle is two dimensional, it has area but not volume.
The circumference and area of a circle, with radius r is: circumference = 2*pi*r and area = pi*r2 Use the first to calculate r and then the second to calculate the area.
pi radius squared
The base of a cone is a circle. The area of a circle is found by multiplying the diameter by Pi.