Draw the structure of the following:
(i) `alpha`-Naphthol , (ii) `1`-Methylanthracene
(iii) `9`-Methylphenanthrene
Strategy: Follow the numbering system pf polynuclear hydrocarbons. Each system has its own numbering system around the periphery.

Explanation

There are some polynuclear hydroclear in which the benzene rings are isolated. For example,