So far you've been introduced to calculating area for 2D shapes, and calculating volume for 3D shapes. But what if I told you we calculated "surface area" for 3D shapes? That's what this lesson is all about: surface area! We'll show you how to use what's called a "net" to more easily calculate surface area.
Represent 3D figures using nets
Use nets to calculate surface area
Represent three-dimensional figures using nets made up of rectangles and triangles, and use the nets to find the surface area of these figures. Apply these techniques in the context of solving real-world and mathematical problems.