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Where's the box?

More like, where is your work?

hey i got it

Got what?

wait a second

I got my dementions

i got my box

ok

its L= 30cm W= 21cm

There has to be another dimension. What is the height?

30cm

hey ? would you get you hieght from the base up.

actualy the box is standing up

|dw:1435412007909:dw|

ohh

wait give me a second

|dw:1435412180299:dw|
Found a better picture

ok so my with would be 13

i just measured it.

i mean hight

L= 30cm
W= 21cm
H= 13 cm

Surface Area of a Rectangular Prism = 2LW + 2LH + 2WH

So calculate the Surface Area using the dimensions and that formula I just posted.

yes i am calculating one second.

hey is it 2lxw

it is 68147

How did you get that?

al i did was did what you told me

abdullahM

but i dont get it am i apost to add them up, x and then ad what.

\(\sf\Large (2\times 30\times 21) + (2 \times 13 \times 21) + ( 2\times 13 \times 30)=?\)

i new it hey ty

but still not done

134365920

how are you getting such huge numbers?

ok, lets do this part by part

ok

what is
\(\sf\Large (2\times 30\times 21) =?\)

1260

ok, now what is:
\(\sf\Large (2 \times 13 \times 21)=?\)

546

and finally what is
\(\sf\Large ( 2\times 13 \times 30)=?\)

780

and now finally what is:
\(\sf\Large 1260 +546 +780=?\)

2586

and that's your surface area...

ok ty

|dw:1435414080138:dw|

erm let me fix that picture, brb

|dw:1435414559024:dw|

there we go

so what would be the cross section?

hello....

it is square AbdullahM

excuse me but can i gett alittle bit of assistance please.

xapproachesinfinity

so u r going 2 sit ther and wait, for what?

well in the example it is a square, but for your question it would have to be a rectangle.

ok ty

for #4, multiply the surface area (2586) by 10

it is 25860

ok

AbdullahM

correct

what is the formula for calculating volume? it's an easy formula :)

yohooo, I don't got all day...

hey bro i am sorry my computer is kicking mmy butt and i had to walk my dogs.

AbdullahM

btw, you tag people like @Tootles143
you should kinda already know that..

The volume of a rectangular prism is the length on the side times the width times the height.

so what is the volume for this box?

abc

is t like in that form

yes

ok

ok so 30x21x13

and that is..

8190

abdullah

and that is your answer for #5

divide that by 10 and that is your answer for #6

is it 819

abadullahM

correct
and the way to tag is by putting `@` before the username

hey can you fan me so i can pm u when i need u

so ber

i give u the meadle

i wont close until i have an answer

I don't fan anyone on this account, sorry about that.

ok

ok then bye

there you meadel