why would you use a pie chart? why is it beneficial?

Brief Explanations:

A pie - chart is used to show the proportion or percentage of different parts in relation to the whole. It is beneficial as it provides a quick and intuitive visual representation. The relative sizes of the slices make it easy to compare the magnitude of different categories at a glance.

Answer:

A pie - chart is used to show proportions of parts to a whole. It is beneficial for its quick and intuitive visual comparison of categories.