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Surface Area of a rectangular prism...? 10 points!?
If the surface area of a rectangular prism is 219cm squared. Then what is the length, width and height?
URGENT.
Thank you. :)
I had to convert the measurements from a cone. The cone measurements were
h=10.9 cm
r= 4.5 cm
s= 11 cm
It is a revised product for a cone paper cup. It does not have the top face.
okay, I just found out the height is 11
4 Answers
- GeorgeLv 41 decade agoFavorite Answer
the area of the base = W * L
the area of 2 sides = W * [sqrt(h^2 + (L/2)^2)
the area of the other 2 sides = L * [sqrt(h^2 + (W/2)^2)
Total surface area = 219 = W * L + W * [sqrt(h^2 + (L/2)^2) + L* [sqrt(h^2 + (W/2)^2)
I think you need to know at least one of the dimensions in order to figure this out!
- Anonymous1 decade ago
You can't possibly solve this, as there is an infinite number of possibilities. Does your question state that they must all be integers, or give a ratio?
Source(s): http://s4.zetaboards.com/science/index/ - Anonymous1 decade ago
just use the formulas ms f gave us.
