There are mathematical symbols to represent angles ($\angle AB$) and magnitudes ($|AB|$) and what not (ie: not variables, but rather symbol operator thingies).
Is there a symbol to represent the area of a given shape?
(so for a shape defined by points $A,B,C,D$; I could represent the area as *symbol* $ABCD$ or something to that effect)
I'm not looking for a variable to contain the area, like $A$, but a representation for a given shape.
(Sorry if this question is out of place; new here)
(was also uncertain about tag)