Section 1
Surface Area and Nets of Rectangular Prisms
Property
The surface area of a solid is the total area of all its outside faces combined.
To easily visualize all the faces of a 3D figure at once, we use a net.
In this Grade 6 lesson from Reveal Math, Course 1, students learn how to find the surface area of rectangular prisms by drawing and using nets to deconstruct three-dimensional figures into their six two-dimensional faces. Students calculate the area of each pair of congruent faces using the formulas A = ℓh, A = ℓw, and A = wh, then add the results to find the total surface area. The lesson connects mathematical and real-world contexts, such as determining how much wrapping paper is needed to cover a gift box.
Section 1
Surface Area and Nets of Rectangular Prisms
The surface area of a solid is the total area of all its outside faces combined.
To easily visualize all the faces of a 3D figure at once, we use a net.
Book overview
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Section 1
Surface Area and Nets of Rectangular Prisms
The surface area of a solid is the total area of all its outside faces combined.
To easily visualize all the faces of a 3D figure at once, we use a net.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter