plane
False on two counts. A rectangular shape is 2-dimensional and so can have no mass. If it is rectangular but has length, width and height then it is a cuboid object. Then, multiplying the length width and height will give the volume, not the mass.
yes because the height is how tall the object is, and the base is how wide the object is, so therefor, base x height is the same thing as length x width. (answer by _mistercat_)
That is how you find the volume of an object.
Volume = Length * Width * Height.
If volume can be provided then by using width, and height length can be found
A solid is a 3 dimensional object having length, width and height. Its volume measured in cubic units is length*width*height
length and height is the same thing it is the height from the bottom to the top of the figure and width is the measurement across and object
Cube
3D
A rectangle is a two dimensional object: height, width and length are three dimensions.
Length (breadth, width or height are also used).Length (breadth, width or height are also used).Length (breadth, width or height are also used).Length (breadth, width or height are also used).
plane
A rectangle is a two dimensional object, with length and width but not height. An object with length, width and height could be a cuboid, in which case is it still the area that is required or the volume?
The volume is the size of an object, length, width and height.
To calculate density with only length, width, and height, you need to also know the mass of the object. Density is calculated by dividing the mass of an object by its volume, which can be found by multiplying length, width, and height. The formula for density is: density = mass / (length x width x height).
A Point