Help !

[gilded atlas]

with this

#maths-discussion message

how is a + b + c 216 because dont u have to add all the edges @sacred sorrel

[wary sand]

where’d u find this q?

[gilded atlas]

It's from a booklet my teacher sent us

[wary sand]

oh well do u still need help?

[gilded atlas]

yes please !

[wary sand]

from that info we can make these equations

abc=5760
2ab+2bc+2ac=2002
4a+4b+4c=216

does that make sense?

[gilded atlas]

yes !

its simultaneous, how do i solve when theres 3 equations?

[gilded atlas]

You don't need to find a, b and c

oh its a ratio?

What is an expression for the new volume in terms of a, b and c?

216+12= sum of new edges

i think

[gilded atlas]

I mean in terms of a, b and c

oh, im not sure

[gilded atlas]

What's the current volume in terms of a b and c

abc=5760

So if I increased each side length by 1 what is my new volume in terms of a b and c

(a+1)(b+1)(c+1)

Yep

Maybe?

Oh thank you!

So now expand that out and see if that helps