Respuesta :
there is only case if ∠c=90
then Δ ACB is right angle triangle.
(hyp)^2=(base)^2+(height)^2
(AB)^2=(15)^2+(17)^2
then Δ ACB is right angle triangle.
(hyp)^2=(base)^2+(height)^2
(AB)^2=(15)^2+(17)^2