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  •  » Geometry- surface area and volume of toblerone box

#1 2012-10-14 11:42:08

rachael00l
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Geometry- surface area and volume of toblerone box

The measurements from my box are W-28cm L-17.4cm H2.4cm. I have to find the surface area of the box, as well as the volume.For the volume, I have the formula 1/2 base*height*width, so would that be 1/2 * 17.4 * 2.8 * 2.4, or do i find the area of the triangle, and then multiply by the height? For the surface area, would i find the area of the rectangle( 17.4 * 2.8) and then multiply by three for the three rectangles, and then find the area of the end triangle, and multiply by 2?dunno Im just a little confused.Thanks!

#2 2012-10-14 14:52:52

bobbym
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Re: Geometry- surface area and volume of toblerone box

Hi;

Welcome.

Looking at Bob's drawing below I have recomputed the answers. I never had toblerone because I do not eat chocolate.

For the volume you use base * height * width.
You will get 584.64 cm^3

http://0.tqn.com/d/math/1/0/J/F/Triangularprismr.gif

Which are you now calling base, height and width?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#3 2012-10-14 18:43:56

bob bundy
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Re: Geometry- surface area and volume of toblerone box

Are you sure you are talking about the same object?

These measurements don't seems right for a Toblerone box.

I've put a picture below with lettered points.  Is this the box you are asking about?

Rachael1001:  Please check your measurements and say which is which by using my letters.

Bob


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You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
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