The document discusses calculating the surface areas of various 3D shapes like cubes, rectangular prisms, and groups of rectangular prisms. It provides examples of adding the surface areas and subtracting overlapping areas. There is also homework assigned that includes mid-unit review problems on finding square roots and decimals with square roots between given numbers.

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2. Blog!!!
It's for marks!
You need to blog on time.
Others are counting on you.
Figure it out BEFORE it's your turn.
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3. Area of squares, rectangles and... (units?)
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5. Surface area of a cube?
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6. Surface area of a rectangular prism
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7. Surface area of two rectangular prisms together
add s.a. of both figure out new surface area
subtract "overlapping area" on both
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8. Surface area of a bunch of rectangular prisms together
add s.a. of both
subtract "overlapping area" on both 6 looks
figure out new surface area
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9. Surface area of a bunch of rectangular prisms together
add s.a. of both
subtract "overlapping area" on both 6 looks
figure out new surface area
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10. Surface area of a bunch of rectangular prisms together
add s.a. of both
subtract "overlapping area" on both 6 looks
figure out new surface area
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11. Surface area of a bunch of rectangular prisms together
add s.a. of both
subtract "overlapping area" on both 6 looks
figure out new surface area
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12. Homework:
Due Tuesday, September 21
Mid­Unit Review:
#2, 3, 4, 5, 6, 7, 9, 10, 11
2a) The number whose square root is 1.4?
Answer: 1.42 = 1.4 x 1.4 = 2.88. √2.88 is 1.4
11a) A decimal with a square root between 4 and 8.
Answer: Pick any decimal between 4 and 8. Square it.
e.g. 6.12 = 6.1 x 6.1 = 37.21, so 37.21 has a square root
between 4 and 8.
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