

6.G.4: Surface Area by Adding Faces
Presentation
•
Mathematics
•
6th Grade
•
Practice Problem
•
Easy
+4
Standards-aligned
Alecia Julian
Used 25+ times
FREE Resource
5 Slides • 16 Questions
1
6.G.4: Surface Area by Adding Faces

2
Goals for this activity
practice calculating surface area
review calculating area of rectangles and triangles
3
You will need a calculator!
Open a new tab
Go to desmos.com/scientific
4
Multiple Choice
Which shape could be folded up to form a cube?
A
B
C
D
E
5
Multiple Select
Which shapes could be folded up to form pyramids?
A
B
C
D
E
6
Multiple Choice
Which shape could be folded up to form a rectangular prism?
A
B
C
D
E
7
Multiple Choice
Which shape could be folded up to form a triangular prism?
A
B
C
D
E
8
Nets
When we unfold a 3D shape into its 2D version, the 2D version is called a net.
9
Nets & Surface Area
We can use nets to calculate the surface area of a shape.
Nets are similar to the composite figures we looked at yesterday--funky shapes made up of more normal shapes.
10
Multiple Choice
Find the area of the base of this rectangular pyramid (Shape A).
40 cm2
20 cm2
I'm not sure--help please!
11
Multiple Choice
Find the area of the two triangles labeled as shape B
48 cm2
24 cm2
I'm not sure--help please!
12
Multiple Choice
Find the area of the two triangles labeled as shape C
40 cm2
20 cm2
I'm not sure--help please!
13
Multiple Select
Which expressions could we use to calculate the total surface area of the rectangular pyramid?
40 + 24 + 24 + 20 + 20
40 + 24 + 20
40 + 2(24) + 2(20)
40 x 24 x 20
I'm not sure--help please!
14
Open Ended
Calculate the total surface area of the rectangular pyramid. Don't forget your units!
Once you have your answer, come back to Teams to compare with other answers.
15
Multiple Choice
Calculate the area of rectangle A.
6 square cm
12 square cm
18 square cm
I'm not sure--help please!
16
Multiple Choice
Calculate the area of rectangle B.
6 square cm
12 square cm
18 square cm
I'm not sure--help please!
17
Multiple Choice
Calculate the area of rectangle C.
6 square cm
12 square cm
18 square cm
I'm not sure--help please!
18
Multiple Choice
Calculate the surface area of the rectangular prism
36 square cm
72 square cm
66 square cm
I'm not sure--help please!
I got a different answer but I don't see it.
19
Open Ended
Calculate the area of the triangle.
When you finish, come back to the Teams screen to check out other answers.
20
Open Ended
The parallelogram has an area of 35 square units. What is the height?
When you finish, come back to the Teams screen to check out other answers.
21
Open Ended
How are you feeling about your test tomorrow? Do you have any questions?
6.G.4: Surface Area by Adding Faces

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