Two examples of 2D figures are a square and rectangle drawn on a paper. Both example figures have length and width.
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You can't without one or the other. If you know length then width is the area divided by the length.
length times width
A plane figure has 2 dimensions (length & width$ & is represented by a flat surface. It takes 3 noncollinear points to make a plane. A solid figure has 3 dimensions. It not only has length & width but also depth. It takes 4 noncoplaner points to make space
Square feet is a measure of area. To figure out how many square feet there are in a square or rectangle, you would simply multiply the width by the length.For example, if the width is 5ft and the length is 7 ft, then the area would be 5x7 = 35 square feet.
To figure that out, you must multiply the width and length 2x since in a square or a rectangle is 2 width and 2 length. and when you must mutiplied it, the answer to both length and width, you must add and that is how you figure out the perimeter of a square or a rectangle. This is for 5th graders who is struggling on geometrey. I'm a perfect A+ student in 5th grade that posted the answer to this. I hope you like it and recomend it!^^ Please recomend it...:)