a planimetry inserted as raster is in scale?

[arch_sv]

Hello.
It is a bit that I do not use autocad and I do not remember how I know if a planimetry that I insert as a raster image is in scale or not.
ps. these are plans ranging from 25,000 to 2,000.
thanks for the attention.
s.

 

[Tristan]

take a measure and check

 

[lattu]

if it is not, use scale with referencefor more info consult the online guide