Question

1) A match box is 4 cm long, 2.5 cm broad and 1.5 cm in height,
Its outer side are to be covered exactly with craft paper,
How much paper will be required to do so?
(Hint: surface area of a cuboid)​

Answer 1

$\huge\pink{Answer}$

We have

Length of the match box =4cm

Breadth if the match box=2.5cm

and,

Height of the match box=1.5cm

Now, for the amount of paper required to cover the match box we need to calculate the surface are of the match box

We know that

Surface area fo the match box=2(lb+bh+lh)

=2(4×2.5+2.5×1.5+4×1.5)

=2(10+3.75+6)

=2×19.75

=39.5cm

2

Hence, The amount of paper required to covered the match box is 39.5cm

2

Answer 2

Step-by-step explanation:

It can be calculated as

2LW+ 2LH + 2HW

2x4x2.5 + 2x4x1.5 + 2x1.5x2.5