Tory ate 2 brownies from a small pan that is cut into nine pieces what fraction of the brownies in that pan did she eat draw a sketch to so your thinking

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)