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#1 2012-10-13 12:42:08

rachael00l
Member
Registered: 2012-10-13
Posts: 1

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!

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#2 2012-10-13 15:52:52

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,521

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

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 agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#3 2012-10-13 19:43:56

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,465

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

View Image: toblerone.gif

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

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