Figure 1 and 2 because heights are r=7; (3,-4,5) the same AND their cross sections On have equal area. Ex: (2,-7,10) See graphs 8.66 a.) 26.18 9.43 b.) 4 Figure1, 2, and 3 all have the same 7.07 heights but only figure 2 and 3 have 10.49 equal area cross sections. 3.74 r=8; (-3,0,-5) a.) Yes; k=4 or 1/4 b.) No r=2√5; (-6,0,8) r=12; (5,-2,-10) a.) 2 to 5 Outside b.) 4 to 25 Ex: (5,0,4) c.) 8 to 125 Multiple Choice C a.) 4 to 3 C b.) 16 to 9 D c.) 64 to 27 D A a.) 2 to 1 b.) 4 to 1 C c.) 8 to 1 C A a.) Yes b.) No C k=2 or 1/2 C A a.) 6 to 7 C b.) 36 to 49 C c.) 216 to 343 Extended Response a.) 5 to 2 384 A. 8’ B. 192 C. b.) 25 to 4 A. 6 cubes B. 416 cm2 C. 384 cm3 c.) 125 to 8 A. 6.9 u B. (x-1)2+(y-2)2+(z-4)2=48 C. 2.9 or 10.9 a.) 3 to 5 b.) 9 to 25 c.) 27 to 125 See graphs 5.196 7.55 7.07 9.8 7 r=6; (2,0,4) r=5; (-3,0,7)
Figure 1 and 2 because heights are the same AND their cross sections have equal area. a.) 26.18 b.) 4 Figure1, 2, and 3 all have the same heights but only figure 2 and 3 have equal area cross sections. a.) Yes; k=4 or 1/4 b.) No a.) 2 to 5 b.) 4 to 25 c.) 8 to 125 a.) 4 to 3 b.) 16 to 9 c.) 64 to 27 a.) 2 to 1 b.) 4 to 1 c.) 8 to 1 a.) Yes k=2 or 1/2 b.) No a.) 6 to 7 b.) 36 to 49 c.) 216 to 343 a.) 5 to 2 b.) 25 to 4 c.) 125 to 8 a.) 3 to 5 b.) 9 to 25 c.) 27 to 125 See graphs 5.196 7.55 7.07 9.8 7 r=6; (2,0,4) r=5; (-3,0,7) r=7; (3,-4,5) On Ex: (2,-7,10) See graphs 8.66 9.43 7.07 10.49 3.74 r=8; (-3,0,-5) r=2√5; (-6,0,8) r=12; (5,-2,-10) Outside Ex: (5,0,4) Multiple Choice C C D D A C C A C C A C C Extended Response A. 8’ B. 192 C. 384 A. 6 cubes B. 416 cm2 C. 384 cm3 A. 6.9 u B. (x-1)2+(y-2)2+(z-4)2=48 C. 2.9 or 10.9
surface-area-and-volume-cw-hw-2012-05-08.docx