For a parallelogram, the area is base x altitude. The altitude is the vertical distance between the base and the side opposite of the base. In a rectangle, which is also a rectangle, the side adjacent to the base, is equal in length to the altitude, because it is perpendicular to the base.
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The area of a square or rectangle can be found by multiplying the length times the width. In a square both the length and width are the same measure.
By multiplying the length times the width.
The area of a rectangle is found by multiplying the length times the width.
The width is half the length: The perimeter is twice the length plus twice the width. If the perimeter is 3 times the length, twice the width must be the length.
If you are multiplying length times width times height, that is three dimensions, and you will get a volume. Area is a two dimensional quantity. You would only need length times width to get area.
Perimeter minus two times the width will give you the two times the length. Area is found by multiplying the length by the width.
Technically you would be finding the area of that shape
it gives the area of the rectangle
A larger rectangle whose width is twice as long as one of the smaller rectangles and whose length is three times that of one of the smaller rectangles.
If the 'ratio' (length/width) of one rectangle is the same number as (length/width) of the other one, then the two rectangles are similar.
The factor pairs are the length and width of the rectangles.