Question

The dimension of a match box which is closed are 6cm×4.5cm×1.5cm. What is the paper size requried to close box compltely and exctly?

Answer 1

The volume of matchbox= lbh=6×4.5×1.5=40.5 cm3
The paper should have this size

Answer 2

Given:

The dimension of a match box which is closed are 6cm×4.5cm×1.5cm.

To Find:

What is the paper size requried to close box compltely and exctly?

Solution:

Length of match box = 6 cm  

Breadth of match box = 4.5 cm  

Height of match box = 1.5 cm  

Total surface area of box =$2(lb+bh+hl)=2(6 \times 4.5+4.5 \times 1.5+1.5 \times 6)= 85.5 cm^2$

Hence The paper size required to close box completely and exactly is 85.5 sq.cm.