Find the degree and radian measure of exterior and interior angle of a regular Octagon

Answer

`(i) 72^(@) "or" (2pi)/(5)` and `108^(@) "or" (3pi)/(5)`
(ii) `60^(@) "or" (pi)/(3)` and `120^(@) " or " (2pi)/(3)`
(iii) `(51.43)^(@) "or" (2pi)/(7)`
(iv) `45^(@) "or" (pi)/(4)` and `135^(@) "or" (3pi)/(4)`