Well, it depends. If it is a solid shape,such as a cube, that would be 3 dimensional or 3D. But if it is just a plane shape, like a square, that would be 0 dimensions, or if you wish to call it, 0D (But that is not the way to say it).
4321
A triangle has 3 sides and 3 inside angles that add up to 180 degrees. If you are asking about physical dimensions, a triangle is a two-dimensional shape.
cube
A shape having the same dimensions of length, height and width is a cube. This can also be referred to as a square prism.
square, rectangle etc. In two dimensions: a quadrilateral. In three dimensions: a tetrahedron.
A quadrilateral is a plane shape and therefore has two dimensions.
Give the shape and dimensions to get an answer.
The answer will depend on the dimensions of the tank, not its shape!
A cuboid is a three-dimensional shape.
The surface of a shape is dependent on its shape and dimensions.
A semi-circle is a two dimensional shape.
Flat shapes such as polygons are two-dimensional.
About 29 gallons
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Find the length and width of the shape
A shape
you look at the shape