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Dallasb22
Group Title
I need some help with Geometry, Finding Total Area in Prisms.
 2 years ago
 2 years ago
Dallasb22 Group Title
I need some help with Geometry, Finding Total Area in Prisms.
 2 years ago
 2 years ago

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johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
Si, si
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
What is the question?
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
Find the Total Area of the Prism:
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
@johnsonshelby
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
Find the area of each side and add together... that's surface area I'm having a brain fart haha What is it you want to find?
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
Thats gross.
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
I want to find total Area
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
T.A. = ph + 2B
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
Rho as in density, right?
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
Greek letter p
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
perimeter of the base times height of the prism + 2Base = Total Area
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
Well the 2B part is easy. 2(area of the triangles)
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
Area of Triangle : 1/2 times 9 "correct" ?
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
1/2 time base of the triangle times the height of the triangle. Because you are only given the base, you need to find the height.
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
And to find the height we use pythag theorem correct?
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
So your new base would be 1.5 and the hypo would still be 3, yep
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
So the height would be a^2?
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
c= 3, b=1.5, and yep a= a
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
so when you plug into pythag, you would get that
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
So A= √6.75 ?
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
Yeah!
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
I have to get to my orgo class in 10 minutes, can you take it from here?
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
So i find the area of the triangle and multiply it by 2 Then i add ?
 2 years ago

johnsonshelby Group TitleBest ResponseYou've already chosen the best response.1
add that to the (perimeter of the base x height), which would be (3+3+3)(6)
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
Area of Triangle = 1.5√6.75 correct?
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.0
btw, people would write \[\sqrt{6.75} \] as \[ \frac{3 \sqrt{3}}{2}\]
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
Okay i got it. Thanks so much!! I just needed a refresh it's been awhile :)
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
So it would be 4.5√3 / 2 @phi ?
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.0
generally you don't mix decimals and fractions i.e. 4.5/2 If you have a multiple choice you probably would see the answer as a pure fraction \[ \frac{4}{9}\sqrt{3} \]
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.0
double that for the other triangle now you have 3 faces that all look the same size 3x6 3 faces each 18 = 54 plus the two triangles 8/9 sqrt(3)
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
Other triangle?
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.0
you have two triangles (the ends) and 3 "side faces" right?
 2 years ago

Dallasb22 Group TitleBest ResponseYou've already chosen the best response.0
Yeah my bad, sorry
 2 years ago
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