Lesson 4: Surface Area of 3-D Objects
Summary
- How is the concept of surface area applied to understanding the design of structures?
- How do you determine the surface area of a 3-D object?
In this lesson you examined the nets of various 3-D objects. These objects included the prism, pyramid, cylinder, sphere, and cone. From the nets, you were able to determine the surface area formulas for each object. These formulas can be used to determine the surface area of any of the 3-D objects investigated, as long as the required information is given.
Whether you are figuring out how much paint you need to buy or how much wood is needed to build a shed, solving problems involving area comes in very handy.
In the next lesson you will investigate volume, another important concept in design. Then in Lesson 6 you will apply what you have learned about surface area and volume to solve problems.