Respuesta :

C. 108cm3.

In terms of working - you do the area of a triangle (base x height / 2) which is (4x6)/2 = 24/2 = 12cm2. Then you multiply that by the length of the prism which is 9cm and 12x9 = 108 so the answer is 108cm3.
the answer is C.108 Hope I helped