You times the length by width, to get the area of the 2D shape.
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what kind of measurement to use when finding the area of a 2d shape
A 2D shape is flat and only has a surface area whereas a 3D shape is an object that has surface area and volume.
To find the the area of a shape is to find the space that is enclosed within a 2D object. Do not mix it up with volume, which is the space enclosed within a 3D object.
It has no volume because it's a 2D shape but its surface area is:- length*perpendicular height
The amount of space inside a 2D shape.