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ESL forum >
Message board > Help!
Help!
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lemarja3
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Help!
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A cube, a pyramid, a cubic are maths ... Can you help me to choose the correct word to complete the sentence? Thanks!
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18 Dec 2009
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lemarja3
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I think that a triangle, a square ... are shapes.
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18 Dec 2009
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Zora
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Well, they are geometrical figures...
And
the sentence is a bit strange in the first place since "a
cubic"...doesn �t exist, it�s an adjective used to express a mathematical expression.. i.e.. find
the cubic area of ..
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18 Dec 2009
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lemarja3
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I think geometrical figures is the correct expression. But what word should I use instead of "cubic"?
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18 Dec 2009
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lagringa
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THE ONES THAT ARE FLAT ARE SHAPES (TRIANGLE, RECTANGLE,CIRCLE, SQUARE) THE THREE DIMENSIONAL FIGURES ARE SOLIDS.(CYLINDER, PRISM, CUBE) BYE. |
18 Dec 2009
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NipponNewfie
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How about "A cube, a pyramid and a globe are three-dimensional geometric figures"? |
18 Dec 2009
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NipponNewfie
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Actually sphere would probably be more correct for math than globe. ie "A cube, a pyramid and a sphere are three-dimensional geometric figures". Hope this helps. |
18 Dec 2009
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Zora
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Well, squares, circles and rectangles are also geometrical figures... any figure that pertains to geometry is in that group so you could say...
"A square, a cube and a pyramid are geometrical figures."
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18 Dec 2009
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yanogator
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The best, I think (as a college Mathematics instructor and former ESL teacher) is "geometric solids".
Bruce |
18 Dec 2009
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Olindalima ( F )
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I think Lagringa is right, and , sorry, Zora, you are not
"A square, a cube and a pyramid are geometrical figures."
They are not, or better, they don �t belong all to the same cathegory: a square is bi dimensional, so it is a geometrical figure, you can �t handle it , but a cube and a pyramid are tri dimensional, so they are objects, you can handle them.You can put a pyramid, a cube on the table, but you can �t put a square anywhere else but on a sheet of paper.
A cube is a solid, a volume ( 3 dimension ), and it has 6 square faces that are squares ( geometrical figures ).
A cube as well as a pyramid are solids, ( 3 dimensional ) and a pyramid can have different surfaces. A cube always has square faces, a pyramid always has some triangular faces ( at least three ) and a base, which can be a geometrical figure of diferent shapes :a triangle, a square a .. don �t know the names, but it can have 3,,5,6, etc sides...
So, Lemaria, I would call them _SOLIDS or VOLUMES
Length x width x height.
Hope I helped you, I am almost sure my maths is right, but not so sure about my English accuracy
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19 Dec 2009
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