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helpmeplz311
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@AriPotta
helpmeplz311
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@jayz657
helpmeplz311
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@omnomnom
AriPotta
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P is perimeter of base, and B is area of base?
helpmeplz311
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yes
AriPotta
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so what's the first figure?
helpmeplz311
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ummm on which link?
omnomnom
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Hm.. I am doing geometry right now.. do you mind waiting?
helpmeplz311
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ill wait:) and hi:)
AriPotta
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the figure with the 1 next to it
AriPotta
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this second link i think. it has a 1 next to it, so i thought you'd want to go in order lol
helpmeplz311
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umm, i think, is there such as thing as a square prism? or is it rectangular?
AriPotta
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a "square prism" would be a cube lol. but yes, it is a rectangular prism
helpmeplz311
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oh ok sorry
helpmeplz311
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now what?
AriPotta
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well, what's the perimeter of the base?
helpmeplz311
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17 + 11 + 17 +11?
AriPotta
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yes
helpmeplz311
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mk, let me calculate
helpmeplz311
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56
AriPotta
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yep. now, what's the area of the base?
helpmeplz311
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umm, 17 times 11?
helpmeplz311
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no i mean 17 times 12!
AriPotta
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yes
AriPotta
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17 times 11
helpmeplz311
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nvm nvm 11 times 12
helpmeplz311
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oh srry
AriPotta
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lol. you were right the first time
helpmeplz311
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yes, sorry, im pretty dumb
brb
calculating...
helpmeplz311
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187
helpmeplz311
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umm, what if ni do them and u check them? ill brb,yes?
helpmeplz311
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ill give thm a shot
AriPotta
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ok
helpmeplz311
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ok, brb.
helpmeplz311
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but dont leave
omnomnom
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O.O
omnomnom
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Just finished my geometry.. But sorry Rachel i cant help with this one.. i have alot more hw today then i did the other days :( Sorry
mark_o.
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he is painting 4 building
1 building will have a rectangular area =(50x25) sq yd
but there are 4 rectangular area A1=4(50x25) sq yd= ? is it = 5000 sq yd? yes ?
and the top portion of area A2=25x20=? ...sq yd is it= 500 sq yd. yes?
if yes add the two areas together A1+A2=---- ?...sq yd
mark_o.
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now for 4 building mult the area (A1+A2) by 4
mark_o.
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@ helpmeplz311
bonus prob
P=perimeter, P1=perimeter of P!, P2= perimeter of P2
P1=5+5+5+5=20
P2=10+10+4+4=28
B=bases, B!=area of base 1, B2=area of base 2
B1=5x5=25
B2=4x10=40
lateral surface area S= s(P!+P2)/2
lateral SA=6(20)(28)/2 =144 sq km ? is it?
total SA=lateral SA + B1 +B2
= 144 +25 + 40 ? sq km is it? yes or no?
mark_o.
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bonus was frustum of a pyramid
mark_o.
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fig 1) rectangular prism
perimeter P=2L+2W, L=length,W=width
P=2*17 +2*11= 56 ? yes or no
base area B=LW =17*11=187 ?yes or no
lateral SA=P h=56*12=672 ?yes or no ,, h=height
total SA =lateral SA +2B=672+2(187)=1046? yes or no?
mark_o.
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fig 4) is the same as fig1) cube ,, except L=W=H
perimeter P=2L+2W, L=length,W=width, note L=W=3.5
P=2(L+W)
P=2(3.5+3.5)=14 ?
base area B=LW =3.5x3.5=12.25?
lateral SA=P h=14x3.5=49?
total SA=2LW + 2(L+W)h=2(3.5)(3.5) + 2(3.5+3.5)3.5=73.5?