Respuesta :

Bryancohen
To find the area of a triangle, multiply base times height and then divide by 2. 7 x 4= 28. 28/2=14. The area of the triangle is 14. Then multiply this by the length of the prism. 14 x 10.3 =144.2. So the answer is 144.2 cm cubed. I hope this helps!