A rectangle has no volume, it is a 2 dimensional object.
Rectangles, being two-dimensional objects, do not have volume. Rectangular prisms, on the other hand, do. The equation for their volume is length*width*height, or lwh.
density = mass/volume
The volume of displaced water is equal to needed volume of the sample.
The answer depends on what information you have about the rectangle: the area and width, or width and diagonal, area and perimeter or some other measures.
Rectangles are flat or two dimensional. They have an area; they do not have a volume. The area of a rectangle is its length x width. If it was about the volume of a three dimensional Cuboid (or rectangular cuboid), its volume is the length x width x height.
Volume of rectangle is 0
Simple. The volume of a rectangle is 0. A rectangle is a two dimensional shape and therefore cannot have a volume.
The volume of a rectangle is 0. It is a 2-dimensional object and so has no volume.
Area of a rectangle = (length of the rectangle) multiplied by (width of the rectangle)
The formula for finding the perimiter of a rectangle is add up all of its sides