Flashcards. Friday, Feb 21 Chapter 10.3 Surface Areas of Rectangular Prisms
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- Slide 1
- Flashcards
- Slide 2
- Friday, Feb 21 Chapter 10.3 Surface Areas of Rectangular
Prisms
- Slide 3
- Objective: To find the surface area of rectangular prisms.
- Slide 4
- Surface Areas of Rectangular Prisms At the end of this lesson
you should be able to answer the following question. What is the
relationship between area and surface area?
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- Surface Areas of Rectangular Prisms The surface area (SA) of a
three dimensional figure is the outer face or exterior boundary of
the figure.
- Slide 6
- Surface Areas of Rectangular Prisms There are two ways to find
the surface area of a shape. 1. Use a formula 2. Use a net
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- Surface Areas of Rectangular Prisms The formula to find the
surface area (SA) of a prism is 2 x Area of the Base + tall x
perimeter of the Base, or SA = 2B + tp
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- Surface Areas of Rectangular Prisms B and b are two different
measurements. In a three dimensional shape the Base (B) is area of
the bottom and top of the shape and determines the name of the
prism.
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- Surface Areas of Rectangular Prisms Area of the Base (B) = lw
Perimeter (p) = w + l + w + l tall (t) = The distance from Base to
Base.
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2B + tp To find the SA of a prism. Step 1
Find the area of the Base. What is the area of the Base?
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2(35) + tp To find the SA of a prism. Step
1 Find the area of the Base. What is the area of the Base? 5 x 7 =
35
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2(35) + tp To find the SA of a prism. Step
2 Find the perimeter of the Base. What is the perimeter of the
Base?
- Slide 13
- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2(35) + t(24) To find the SA of a prism.
Step 2 Find the perimeter of the Base. What is the perimeter of the
Base? 5 + 7 + 5 + 7 = 24
- Slide 14
- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2(35) + t(24) To find the SA of a prism.
Step 3 Find the tallness. How tall is the shape? (What is the
distance from Base to Base?)
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2(35) + (4)(24) To find the SA of a prism.
Step 3 Find the tallness. How tall is the shape? 4
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2(35) + (4)(24) (4) SA = 166ft To find the
SA of a prism. Step 4 Perform the operations.
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. Do this on your own.
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2(3x4) + (2)(3+4+3+4) SA = 52m
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. Do this on your own.
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. SA = 2(7x4.8) + (6)(7+4.8+7+4.8) SA =
208.8cm
- Slide 21
- Surface Areas of Rectangular Prisms The surface area (SA) of a
prism can also be determined by using a net. A net is a
deconstructed (flat) version of a three- dimensional shape.
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- Surface Areas of Rectangular Prisms To find the surface area
(SA) of a prism by using a net the area of each face is added
together, like a composite shape.
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- Surface Areas of Rectangular Prisms Since a rectangular prism
has 6 faces, there will be six areas to add.
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism.
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. What is the area of the outlined shapes?
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. 12+12 What is the area of the outlined shapes? 6
x 2 = 12
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. 12 + 12 What is the area of the outlined
shapes?
- Slide 28
- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. 12+12+18+18 What is the area of the outlined
shapes? 2 x 9 = 18
- Slide 29
- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. 12+12+18+18 What is the area of the outlined
shapes?
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. 12+12+18+18+54+54 What is the area of the
outlined shapes? 6 x 9 = 54
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. 12+12+18+18+54+54 What is the total area?
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. 12+12+18+18+54+54 What is the total area?
12+12+18+18+54+54= 168yd
- Slide 33
- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. Do this on your own.
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- Surface Areas of Rectangular Prisms Find the SA of the
rectangular prism. 100+100+150+150+150+150= 800in
- Slide 35
- Surface Areas of Rectangular Prisms A geode is being sent as a
gift. It is packed in a box that measures 7 inches long, 3 inches
wide, and 16 inches tall. What is the surface area of the box? Do
this on your own.
- Slide 36
- Surface Areas of Rectangular Prisms A geode is being sent as a
gift. It is packed in a box that measures 7 inches long, 3 inches
wide, and 16 inches tall. What is the surface area of the box? B =
7 x 3 = 21, H = 16 SA = 2B + Hp SA = 2(21) + (16)(7+3+7+3) =
362in
- Slide 37
- Surface Areas of Rectangular Prisms Agenda Notes Homework No
Homework, but Homework Practice 10-3 due by the end of the period
Chapter 10 Test Wednesday, Feb 26