Respuesta :

Answer:

surface is 55,2 volume is 28,8

Step-by-step explanation:

Answer:

a. 69.6

b. 28.8

Step-by-step explanation-

Surface area:

front and back= 38.4

sides= 7.2

top and bottom=  24

add them together: 24+7.2+38.4= 69.6