What's the best way to begin laying out an irregularly shaped building?

a. lay out a large rectangle that includes most of the building.
b. input the rise and run of the overall building size.
c. work from an existing line such as a road, street, or property line.
d. begin by laying out the longest side of the building

Will give brainlest! for graphic design i have to draw a personality split self portrait ( half is what people see me at first glance and the other half is my personality). idk what i should put on my personality side. someone me give ideas on what to draw ( doesnt exactly have to be my personality , there just has to be something )