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
