[RESOLVED] convert pixels² to cm²

[.paul.]

i've got a formula for calculating the area of a triangle:

x1 = points(1).X
y1 = points(1).Y
x2 = points(2).X
y2 = points(2).Y
x3 = points(0).X
y3 = points(0).Y
Dim area As Decimal = (0.5 * ((x1 * (y2 - y3)) + (x2 * (y3 - y1)) + (x3 * (y1 - y2))))
Debug.Print(unitConverter.pixelsSquaredToCMSquared(gr, area))

it works well but it calculates the output in pixels² + i need it to be cm²

heres my converter function that works well converting a pixel length to a cm length, but doesn't work with pixels²:

Public Shared Function pixelsSquaredToCMSquared(ByVal gr As Graphics, ByVal pixels As Decimal) As Decimal
    Return (pixels / gr.DpiX) * 2.54
End Function

what am i doing wrong?