Surface Area
The boundary of three-dimensional objects consists of several two-dimensional shapes. The total area of these shapes is called the surface area of the object. It gives some idea of how large an object is, but now how much space it takes up. This is measured by volume, which we will discuss next. Watch this lecture series and complete the interactive exercises to practice calculating the surface area of rectangular prisms.
Practice
Surface area word problems - Answers
1. It will take 
cm2 of paper to make each tree.
2. It will take 
m2 of material to make the tent.
3. The surface area of the door is 
cm2.
4. The surface area of the roof is 
m2.