Which equation could be used to solve problems involving the relationships between the angles?
A) 90+(8a+9)=(11+2a)
B) 90-(8a+9)=(11+2a)
C) (11+2a)-90=(8a+9)
D) (8a+9)-(11+2a)=90

Which equation could be used to solve problems involving the relationships between the angles A 908a9112a B 908a9112a C 112a908a9 D 8a9112a90 class=