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Some of the many applications that pi is used in geometry are as follows:- Finding the area of a circle Finding the circumference of a circle Finding the volume of a sphere Finding the surface area of a sphere Finding the surface area and volume of a cylinder Finding the volume of a cone
The answer will depend on the object that you wish to measure. For example, a balance and some standard masses (wrongly called weights) will be OK for measuring the mass of a few apples but not much use for the mass of an elephant and totally useless for the mass of the sun! In the latter case, the tools are spectroscopy and computers, with physics and mathematics as intellectual tools.
mass is measured with a balance comparing an unknown mass with an object of known mass. weight is not measeured with the same tools as mass.
The base area * height = Volume
Its the 16th letter of the Greek alphabet Its pi day on March 14th Its value to two decimal places is 3.14 Its worked out by dividing the circumference of any circle by its diameter Its true value is probably infinity Its used in finding the area of a circle Its used in finding the circumference of a circle Its used in finding the volume of a sphere Its used in finding the surface area of a sphere Its used in finding the volume of a cone Its used in finding the curved surface area of a cone