Find the radian measures corresponding to the following degree measures:
`(i) 25 ^(@)`
(ii) ` - 47^(@)30`
(iii)` 240^(@)`
(iv) `520^(@)`

Answer

`(i) (5pi)/(36)`
(ii) ` - (19pi)/(72)`
(iii) ` (4pi)/(3)`
(iv) ` (26 pi)/(9)`