Question 20
How many interior angles are there in the polygon below?
Editorial convention: treat the tiny lower-left ledge in the raster outline as a drawing/stroke irregularity, rather than an additional intended corner. If treated as a deliberate extra edge, it can change the count; the answer here uses this stated convention.
Editorial convention: treat the tiny lower-left ledge in the raster outline as a drawing/stroke irregularity, rather than an additional intended corner. If treated as a deliberate extra edge, it can change the count; the answer here uses this stated convention.