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hm, well i answered your other question straight up, so if you can figure out how i got that, then you might be able to do this...
so you just have to multiply the volume by the scale left hand side and right hand side
sorry divide by left side, multiply by right side... thats how scales work
so for the rectangle, the new scale factor would be 9:27...
well you only need the volume right? so take the volume of the rectangle prism (495) then divide by 1 and multiply by 3 because its 1:3
i need the surface area and volume
is that whats on the side? S and V?
ok so you only need to use those and the scale to work it out... so say i have a S=6 and scale 2:6 my S=(6/2)*6=18 can you relate that to the question you have??
so i would do (3/1)*398
no, you would do (398/1)*3
i chose bad numbers, which were easy to mix up sorry
so the surface area would =1194in^2
would it be the same for volume?
yeah, you do it the same way. cause they already gave you the volume, just in the wrong scale... so its (495/1)*3 which i know you can do... so what is the answers for teh rectangle?
yeah, but what about the other picture... can you tell me the answers for that? you just do it the same way.
thats not the same way.
oh wait, is that blurry thing pi? if so then yeah thats right
it says 144 pi cm^2 for the surface doesn't it?
yea it is
ok cool, you got it congrats :)
oh no its ((144*pi)/2)*3 sorry... so close, but it was just a small error
Surface are= 678.24cm^2
yep, final answer :)
yes. what are you in like grade 8? doing better than i was then...
im actually a senior
i'd count grade 8 as senior :( scales took me ages was my point anwyay
and you got the powers right which was pretty cool :P
thank you for ur help