Answer:
29.04
Step-by-step explanation:
Firstly solve the side BC...by using the pythagoras theorem,
; BC^2 = AB^2 + AC^2
; BC^2 = (8)^2 + (9)^2
; BC = square root of ( 64 + 81 )
; BC = 12.04
Hence the perimetre of triangle ABC
; 12.04 + 9 + 8
;Perimetre = 29.04
