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Which would help to calculate the volume of the composite figure shown?

first could you tell me what shape that is?

it looks like a prism...

no idea what kind though

Anyone know what formula i would use to solve this?

^that's needed. rough idea would be base area x height..so dimensions would be fantastic

i am sorry dear moderator. i had no idea i unconsciously stated an answer. please don't ban me again

lets see...
semicicular region, area = 1/2 pi radius ^2
|dw:1372858384560:dw|

you did state the answer ? i missed it!

let's keep it that way then

hartnn, i dont really understand what you drew?

The base is a rectangle if thats what you were asking

i drew the base region, sorry for my bad drawing :P

oh okay :p so you think the formula is area = 1/2 pi radius ^2 ?

oh :/ just from the answers which one would you think it is?

are you sure, choices are correct ? because a volume should contain '3' dimension of length!

I would say its B and yes these are the correct answers

because once you have done the half circle there isnt anything that has to be done with a slant

see, your choices a,b,d have only 2 dimensions of length, they all are AREAS!

ooooohhh...

only choice 'c' is volume but it doen't contain pi :\

if the 1st choice is base 'area' times side, then it can be the answer

Yeah i would actually say its C and yes it does the answer on my screen is 1/3TTr^2h

the TT is pi

I guess i did mess up the answers sorry :/

ohh..but 'c' didn't describe 1/3 pi r^2 h...
anyways, no problem :)

Thank you so much!

welcome ^_^