Answer:
1. 540 cm^3
2. 448 cm^3
Step-by-step explanation:
1. Volume of rectangular prism is height times width times length, hwl, or
18*7.5*4 = 540, 540 cm^3
2. Volume of triangular prism is surface area of base times length
the length is 14 cm, and the base is the triangle, The area of a triangle is half of the base times the height, 1/2b * h. The base of this triangle is 8 cm, and the height is also 8 cm, 1/2(8) * 8 = 4*8 = 32, 32 times the length of the triangle is 32*14 = 448 cm^3
