Respuesta :

Answer:

Step-by-step explanation:

the triangles:

3x4=12

the area of both triangles added is 12in

the bottom of the prism:

4x9.4=37.6

the area of the bottom of the prism is 37.6in

the area of the hypotenuse:

5x9.4=47

the area of the hypotenuse is 47in

the area of the back of the prism:

3x9.4=28.2

the area of the back of the prism is 28.2

add: 12,37.6,47,28.2=124.8in

brainliest appreciated