What is the surface area of the triangular prism shown? Show all of your work or explain how you found your answer using complete sentences. You can use the formula: SA = 2B + PH.
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OpenStudy (anonymous):
OpenStudy (jim766):
first find the area of the base and mult by 2 1/2bh
1/2(9)(12)
What do you get?
OpenStudy (anonymous):
@Jim766 i posted this cuz i need help can u answer please
OpenStudy (jim766):
and I am helping you.....
but you will have to participate what is 1/2(9)(12) ?
OpenStudy (anonymous):
@Jim766 if u answer ill give u best responce
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OpenStudy (jim766):
lol
OpenStudy (anonymous):
i dont know what 1/2(9)(12) is
OpenStudy (anonymous):
@Jim766
OpenStudy (anonymous):
@Jim766 its 54
OpenStudy (jim766):
right.... now multiply it by 2
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OpenStudy (anonymous):
108
OpenStudy (jim766):
in the formula where it says 2B , this is what they are talking about
2 times the area of the base
OpenStudy (anonymous):
ok are we done
OpenStudy (jim766):
the rest of the formula says PH
that is the paremeter times the height
the 3 sides are 9, 12 and 15 add them up and mult by height 6
OpenStudy (anonymous):
thnx jim
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