Your answer is 192.5 cubic centimetres To find the volume of a prism you need to find the cross-sectional area, in this case the area of the triangle at the front, and multiply it by the prism’s depth. The equation for the area of a triangle is (base × height)/2, so using that we get (7 × 5)/2 = 35/2 = 17.5 cm² Now we need to multiply this by the depth, which gives us: 17.5 × 11 = 192.5 cm³ I hope this helps!