length
the linear extent in space from one end to the other; the longest dimension of something that is fixed in place
area
the extent of a 2-dimensional surface enclosed within a boundary
foot
the pedal extremity of vertebrates other than human beings
inch
a unit of length equal to one twelfth of a foot
perimeter
a line enclosing a plane areas
circle
ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point
weight
the vertical force exerted by a mass as a result of gravity
yardstick
a ruler or tape that is three feet long
millimeter
a metric unit of length equal to one thousandth of a meter
