Respuesta :

Answer:

112cm^2

Step-by-step explanation:

A=2(wl+hl+hw)=2·(2·8+4·8+4·2)=112

Answer: B. 64 cm³

Step-by-step explanation:

Let's lenth of the object set is a, width - b and height - h

Thus,

V=abh

a=8 cm   b=2 cm    h=4 cm

Hence,

V=8*2*4

V=64 cm³