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Geometry 8 Online
OpenStudy (anonymous):

the volume of the triangular prism shown is 300 cubic centimeters what is the height of the prism

OpenStudy (anonymous):

|dw:1369880963433:dw|

ganeshie8 (ganeshie8):

|dw:1369881196137:dw|

OpenStudy (jhannybean):

Volume of a triangular prism is \[V= \frac{1}{2}b*h*l\] first we need to figure out the height.

OpenStudy (anonymous):

yea

OpenStudy (jhannybean):

|dw:1369881314057:dw| that part :)

OpenStudy (anonymous):

its 5 right

OpenStudy (jhannybean):

I don't think so...we'll need to do some calculations to figure that out.

OpenStudy (anonymous):

ok

OpenStudy (jhannybean):

so if we take 1 side of that triangle, we will get |dw:1369881537557:dw|

OpenStudy (anonymous):

2.5

OpenStudy (jhannybean):

\[\large a^2+b^2=c^2\] so inputting these values and solving for h, you get \[12^2=(\frac{5}{2})^2+h^2\]\[144= \frac{25}{4}+h^2\]\[144-\frac{25}{4}=h^2\]\[h= \sqrt{144-\frac{25}{4}}\] i'll let you solve the rest :)

OpenStudy (anonymous):

11.736

OpenStudy (dan815):

I AM HERE!

OpenStudy (anonymous):

lol ok

ganeshie8 (ganeshie8):

|dw:1369882526864:dw|

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