In statics, another type of “centre” that we’re more interested is the *centre of geometry* or centroids.

Like centres of mass, centroids refer to the centre point of a geometry be it a line, area or volume. It is also calculated in a similar manner to the centre of mass:

In statics, another type of “centre” that we’re more interested is the *centre of geometry* or centroids.

Like centres of mass, centroids refer to the centre point of a geometry be it a line, area or volume. It is also calculated in a similar manner to the centre of mass:

In statics, we will pretty much be only using the *centroid of area*, so don’t worry too much about the line and volume centroids. If the integration formula looks scary, don’t worry as we’ll be looking at a simple
example now.

Note that the examples are designed to help you see how the centroids of common shapes are derived using the original integration method. Usually in practical situations, you’ll be given a table of centroids for common shapes to refer to.

In statics, we will pretty much be only using the *centroid of area*, so don’t worry too much about the line and volume centroids. If the integration formula looks scary, don’t worry as we’ll be looking at a simple
example now.

Note that the examples are designed to help you see how the centroids of common shapes are derived using the original integration method. Usually in practical situations, you’ll be given a table of centroids for common shapes to refer to.