Posting a box

This task is about area, surface area and volume of a box.
To post a box like this it must be taped securely. The tape is shown on the diagram.

box

Question 1Change answer

To post a box like this it must be taped securely. The tape is shown on the diagram.
a) What is the volume of the box?  cm3

 
b) What is the area of the shaded surface of the box?  cm2

 
c) What is the area of all 6 surfaces of the box?  cm2