What is the value of AB?

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee