Report Abuse. Pi is the ratio of the circumference of a circle to its diameter. It cannot be written exactly as a decimal because it is a transcendental number; it's irrational. pi to 100 significant figures: 3.141592653589793238462643383279502884... 49445923078164062862089986280348253421...
transformation. n. 1. a change or alteration, esp a radical one. 2. the act of transforming or the state of being transformed. 3. (Mathematics) maths. a. a change in position or direction of the reference axes in a coordinate system without an alteration in their relative angle.
geometry. 1  the branch of mathematics that deals with the deduction of the properties, measurement, and relationships of points, lines, angles, and figures in space from their defining conditions by means of certain assumed properties of space. any specific system of this that operates in accordance with a specific set of assumptions: Euclidean geometry.