SURFACE AREA OF SPHERE:- If, the radius of a sphere=r Then, SURFACE AREA OF SPHERE=4πr2 Ex;- If, radius of a sphere=r=14cm SURFACE AREA OF SPHERE=4πr2 ...
there are different types of numbers 1) Whole Number: the numbers which start from 0 eg, 0,1,2,3,..... Upto infinity . They are denoted by W. They are positive number 2) Natural Number: The numbers...