

Surface Area
Presentation
•
Mathematics
•
7th Grade
•
Hard
Standards-aligned
Victor Winters
Used 439+ times
FREE Resource
5 Slides • 5 Questions
1
Surface Area (Cube and Rectangular Prism)
by Mr. Winters

2
Objectives
to provide you with both a definition and understanding of Surface Area
to demonstrate how to find the surface area of certain 3-D objects
3
What is Surface Area?
The Surface area is the total area of all the surfaces of a 3-D object. Examples are: cubes, triangular prisms, & rectangular prisms.
REMEMBER since we are dealing with 3-D objects, your unit measurements must be CUBED!!!
4
Multiple Choice
What is the definition of Surface area?
The total area of all the surfaces of a 2-D object?
The total area of all the surfaces of a 3-D object?
The top area of an object?
5
Surface area of a Cube
Remember a cube is a 3-D object that has 6 equal sides.
To find the surface area of a Cube, we simply have to take the total (sum) of each side's surface area.
The formula is SA = 6s2 , where s equals one side
6
Multiple Choice
What is the surface area of this cube?
150ft3
25ft3
150ft2
7
Multiple Choice
What is the surface area of this cube?
54 cm2
36 cm3
54 cm3
8
Surface area of a Rectangular Prism
A rectangular prism is a 3-D object that has 56 sides. Those sides are 4 rectangles and 2 squares.
To find the total surface area, all we have to do is add each side's surface area.
Formula: SA = 2lw + 2wh + 2lh
9
Multiple Choice
What is this object's surface area?
144 in3
164 in3
144 in2
10
Multiple Choice
What is the surface area of this object?
148 cm3
188 cm3
148 cm2
Surface Area (Cube and Rectangular Prism)
by Mr. Winters

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