a) B vertex is the corner b) D and C those are the sides of the angle c) angle sign DBE that’s just how you write angles d) not sure what this means but FBC: right angle; EBF: obtuse angle; ABC: straight angle e) sorry idk f) EBC is the sun of tte previously said so 36 + 108 = 144 degrees g) EBF is 117 and ABF is a right angle so you do 117 - 90 and ABE IS 27 degrees
