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Published byBuck Henderson Modified over 8 years ago
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What is surface area of the composite figure? SA: Cylinder =2πrh+πr^2 =2π(5)(6)+π(25) =60π+25π =85π LA: Cone = r= r = (5)(13) =65 5 13 85π+65π=150π
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Quiz tomorrow!
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Length is a single dimension. Area is the amount of space a 2 dimensional figure covers. Volume is the amount of space a 3 dimensional figure occupies.
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Bh height of the prism area of the base
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V=Bh B=(8)(3) =24 h=2 V=24(2) =48 ft cubed
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What is the volume of the triangular prisms? 30 60 4 4√3 B=½(8)(4√3) =16√3
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πr2πr2 radius of the base height of cylinder Bh or πr 2 h
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r=9 h=6 V=π(81)(6) =486π ft cubed
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What is the volume of the cylinder?
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12 36
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Page 582-583 1,2,3,7,8,9,10,18 Yesterday’s Assignment P 577 # 1, 3, 5, 9, 12, 16 Pg. 674 #5-10
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