Hey guys it would be awesome if someone could help... Thank You
A candy bar box is in the shape of a triangular prism. The volume of the box is 2,400 cubic centimeters.
http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_%20test2_m5_g4_p.jpg
Part A: What is the height of the box?
Part B: What is the approximate amount of cardboard used to make the sides of the candy box? Explain how you got your answer. (5 points)

- anonymous

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- anonymous

@DanJS

- anonymous

@Deeezzzz

- DanJS

Links to signed in things dont work.. but

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## More answers

- anonymous

http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_%20test2_m5_g4_p.jpg

- DanJS

|dw:1437756105426:dw|

- anonymous

A triangular prism is shown with base of triangle labeled 16 cm, sides of triangles labeled 17 cm, and length of the box equal to 20 cm.

- DanJS

Cant link pages that you signed into , im guessing, does not work

- anonymous

does that help

- anonymous

the descri[tion

- DanJS

yes

- anonymous

great

- DanJS

|dw:1437756241528:dw|

- anonymous

perfect

- DanJS

The volume of that shape , is just the area of the triangular face times the extruded length of the box

- DanJS

\[V = 1/2*base*height*depth\]

- DanJS

To find the height, need to work with the triangle like this...

- anonymous

proceed

- DanJS

|dw:1437756382708:dw|

- DanJS

So the height, is found with the pythagorean theorem
17^2 = 8^2 + h^2

- anonymous

can i help

- DanJS

\[V = 1/2*base*height*depth \]
\[V = 1/2 * 16 * \sqrt{17^2-8^2} * 20\]

- anonymous

yes of course
@kittylover1234

- anonymous

that seem right i agree

- DanJS

oh, they gave you the volume at the start, so you could have figured h, without all the triangle things...
V = 2400 = 1/2 * 16 * h * 20

- anonymous

yep so good so far

- anonymous

give me a sec im trying to understand

- DanJS

either way, the height comes out the same...k

- anonymous

ummm ook...

- DanJS

For the Surface Area, you have to add up the area of all the sides, all the dimensions are given

- DanJS

2 triangles, 3 rectangles

- anonymous

so the hieght is 15 right?

- DanJS

right

- anonymous

ok then for the surfcae area i would have to add up all the areas

- anonymous

i got the answer

- DanJS

|dw:1437756997046:dw|

- anonymous

what did you guys get

- anonymous

what is it kitty ;)

- DanJS

didnt calcualte

- anonymous

me niether

- anonymous

mine was wrong dang

- anonymous

calculated wrong

- DanJS

1240

- anonymous

that what you got

- DanJS

\[S.A. = 2[\frac{ 1 }{ 2 }]*16*15 + [20*17]+[20*17]+[20*16]\]

- anonymous

I got 1,320

- DanJS

2 triangles, 3 rectangles

- anonymous

does any one agree

- anonymous

oh nvm your rigt Dan

- anonymous

right**

- DanJS

|dw:1437757284740:dw|

- anonymous

Yup your def Right Dan Thanks so much both of you...!! @DanJS @kitty_lover1234

- DanJS

welcome

- anonymous

welcome

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