Dear Friends, Know more on Equation of Circles. With this file, you will be able to learn:(a) what is a circle,(b) about the centre and radius of a circle on a Cartesian plane,(c) the standard form equation of a circle,(d) how to read the coordinates of the centre and the radius from the standard form equation,(e) how to write the standard form equation from given centre and radius.You will learn also how to find the standard equation of a circle when(a) the centre and the diameter are given(b)