Mynd i'r prif gynnwys

Three headings spaced evenly down page: Pam? [arrow to] Beth? [arrow to] Sut?. Four boxes, arrows between them, boxes increase in width: Cenhadaeth a gwerthoedd [arrow to] nodau neu golau [arrows to] amcanion [arrows to] Targedau. Two headings: Diben eang (level with 'cenhadaeth a gwerthoedd') [arrow down to] diben penodol ac uniongyrchol (level with 'Targedau').

 1.2 Pam dechrau busnes?