In this lesson, you solved problems involving the volume of rectangular pyramids and triangular pyramids. As you noticed, there are also many other types of pyramids. However, you will learn more about determining the volumes of those pyramids in later courses.
Pyramids are important figures because they are very common in art and architecture. For example, the Louvre museum in Paris contains a glass pyramid above the visitors center.
Source: Louvre (12621417763), Miguel Mendez, Wikimedia Commons