Maths problem!!!Need Help!!!!

Sure, I'll help! I'll take 你 through the first half of the sum, and leave the rest to you.

So, 你 know that the surface area is 486cm3. The formula to find out the surface area is length x width x height. So thats:

l x W x H = 486cm3

Now, this becomes algebraic. 你 need to find a common length that the others are all relative to, which is given: height.

Length = Height x 2, which simplifies to l = 2H
Width = Height / 2, which simplifies to W = 0.5H

你 then put them into the formula.

2H x 0.5H x H = 486 cm3

See how 你 go from here. If 你 need anymore help, just ask.

No. I believe 你 beilive help with your grammar, it's math problems sweetie,

Ask your teacher .

*Brain explodes*

Go...ask...your...teacher...or...a...math....expert...

The internet is a wonderful place with answers. The answer is not here this time.

Anyway,if somebody knew why are we doing YOUR
maths work?

Now 你 发布 this,you reminded me I need to do my homework(really can't be bothered to write a report,read two 图书 and do a 阅读 paper).

I do not know.