For example, if there is a L shaped sketch and you dimension from the bottom of the L to just above the horizontal part, and then you dimension the vertical part from the end point of the last dimension you'd be okay. But, if you dimensioned both of those lengths and then the total length you would be over dimensioning the sketch.
Answer:
that's so beautiful ❤️ last time I saw something so cute was you
It is where you draw an outline of your character and use it to write information on them (I.e facts, what they say about other characters, what characters say about them) it helps to build characterisation.