Question

The figure below is a net for a right rectangular prism. Its surface area is 384 cm2 andthe area of some of the faces are filled in below. Find the area of the missing faces,and the missing dimension.Yes

Answer 1

For this case we know the total surface area given by:

384 cm^2

And we have the following: 108+48 +108+48 = 312 cm^2

the ramianing area is:

384 -312= 72 cm^2

And we can do the following:

2*9*? = 72

Solving for ? we got:

? = 72/18 = 4 cm

the final answer is:

The area of each missing face is: 36 cm^2

The lenght of each missing edge is: 4 cm