Question

Peter is covering a box to mail. The dimensions

of the base are 5 inches by 3 inches and the height
is-8 inches. How much paper will he need to totally
cover it?

Answer 1

158 inch^2

Explanation:

To know how much paper he needs, we need to find the surface area of the box he wants to mail and thats the amount of paper.

Surface area of cuboidal box:

= 2( lh+bh+lb)

where l is length

b is breadth

h is height

= 2( 5*3+8*3+5*8)

= 2 ( 15+24+40)

= 2*79

= 158 inch^2 of paper