Lesson 12 Surface Area of Rectangular Prism.notebook
March 14, 2017
3/14 Problem of the Day
Common Core Review:
1. A family purchased tickets to a museum and spent
a total of $38. The family purchased 4 tickets.
There was a $1.50 processing fee for each ticket.
Write and solve an equation that can be used to
find x, the cost of one ticket to the museum. Show
your work or explain your answer.
Previous Lesson Review:
2. Nathan wants to cut the rectangular prism below so
that the resulting face is a square.
How should he cut the prism?
[A]
[B]
[C]
[D]
across a corner, through the top, front, and side
through the top and bottom, parallel to the ends
through the ends, parallel to the top and bottom
through the top and bottom at a 45­degree angle
to the bottom
3. The diagram below shows a rectangular prism
intersected by a plane.
What is the area of the cross­
section created by the plane?
4. A rectangular pyramid is sliced by a plane that is
perpendicular to the base of the pyramid as shown.
Which BEST describes the resulting face of the
slice?
[A] rectangle [B] square [C] trapezoid [D] triangle
Mar 11­4:32 PM
1
Lesson 12 Surface Area of Rectangular Prism.notebook
March 14, 2017
Describe situations in which it would be appropriate to know the surface area of something. Units for surface area are square units: square centimeters, square kilometers, square inches, square feet, etc. Why?
Feb 15­1:53 PM
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Lesson 12 Surface Area of Rectangular Prism.notebook
March 14, 2017
Mar 11­4:40 PM
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Lesson 12 Surface Area of Rectangular Prism.notebook
March 14, 2017
Mar 11­4:40 PM
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Lesson 12 Surface Area of Rectangular Prism.notebook
3/14
March 14, 2017
Lesson 12: Surface Area of a Rectangular
Prism
Surface area ­ sum of all of the area of all faces.
SA = find the area of all six faces and add together
(front, back, left, right, top and bottom)
or
SA = 2 (length x width) + 2 (width x height) +
2(height x length)
2 cm
3 cm
11 cm
Feb 15­1:57 PM
5
Lesson 12 Surface Area of Rectangular Prism.notebook
March 14, 2017
Assignment: Lesson 12 Surface Area of
Rectangular Prism Worksheet
Mar 11­5:12 PM
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