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Why can a rectangle also be called a parallelogram?
A parallelegram is a kind of shape in which the sets of lines are parallel to each other, such as in the case of a rectangle. Squares and rhombi are also examples of parallelograms. Triangles and circles are examples of shapes that are not parallelograms.
What are polyhedrons?
A polyhedron is a kind of rectangle. This category includes squares,circles,etc.
What kind of triangles make up the faces of a triangular hexahedron?
They can be any kind of triangles.
Is a parallelogram a ploygon?
The word polygon means a many sided plane figure or shape. Triangles, squares, pentagons and so on are all polygons. A Parallelogram is a special kind of 4-sided figure and is a polygon.
Why does it work when you multiply length times width and get area?
Kind of an odd question, but I'll give it a go. A good example is a box with sides 2 and 2. 2 x 2 = 4 squares 22 = 4 squares now try 2 and 4 2 x 4 = 8 squares area is just a numerical representation of how many squares of a unit of measure there are in a shape. Some shapes are a bit more complex to figure area for, like circles, but the idea is the same. It works because length and width are the dimensions of a shape, so multiplying them together gives you the area of that shape in whatever units you are using.
