A spiral is made up of successive semicircles, with centres alternately at A and B, starting with centre at A, of radii 0.5cm, 1.0cm, 1.5cm, 2.0cm,.... What is the total length of such a spiral made up of thirteen consecutive semicircles?(NCERT Te
i really enjoy learning algebra........ but i always wonder why we have to learn it??? can u please answer to my doubt???