Question

A box is 30cm wide 40cm long and 25cm high calculate area boa

Answer 1

Answer:

SA = 5900 sqcm

Explanation:

I am assuming you meant surface area since this is a three dimensional box.  This formula for surface area (SA) is SA = 2 (wl + hl + hw).  Once you have that would just have to plug the numbers in and calculate!