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Mathematics 24 Online
undeadknight26 (undeadknight26):

Some one show me how to do this? REALLY easy?

undeadknight26 (undeadknight26):

Is it A or is it B?

OpenStudy (anonymous):

you have to times all those number to get d

geerky42 (geerky42):

\(V = \dfrac{1}{3}Bh\) You need to find area of base. should be easy, right?

geerky42 (geerky42):

So you got it? @undeadknight26

undeadknight26 (undeadknight26):

I got B still :/ Im using the formula L = (lwh)/3

undeadknight26 (undeadknight26):

I understand its D though lol

undeadknight26 (undeadknight26):

Just want to know how to get that answer XD

geerky42 (geerky42):

No it's not D.

geerky42 (geerky42):

and what you used, it's formula for square pyramid.

geerky42 (geerky42):

you have pyramid with right triangle base.

undeadknight26 (undeadknight26):

I see so you would have to divide the base in half?

geerky42 (geerky42):

after multiplying lenghts, yeah

geerky42 (geerky42):

so you should do \(\dfrac{1}{2}(15\times26)\)

undeadknight26 (undeadknight26):

195

geerky42 (geerky42):

so what's area for base?

geerky42 (geerky42):

correct. now multiply heihgt

geerky42 (geerky42):

then divide whole thing by 3.

geerky42 (geerky42):

So what's final answer?

undeadknight26 (undeadknight26):

A

geerky42 (geerky42):

Correct.

undeadknight26 (undeadknight26):

I see where i went wrong lol I treated it as a regular pyramid...Which dumb*** made a triangular based pyramid?!

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