Question

a matchbox is 4 cm long 2.5 cm broad and 1 .5 cm in height ita outer sidea rae to be covered exactly with craft paper how much paper will be required to do so​

Answer 1

Correct Question :-

A match box is 4cm long , 2.5cm broad and 1.5cm in Height it's outer sides to be covered exactly with craft paper how much paper will be required to do so?

Given :-

• The length of the match box is 4 cm

• The breath of the match box is 2.5cm

• The Height of the match box is 1.5cm

To Find :-

We have to find that the how much paper is required to cover the match box so for that we had to find the total surface area of the box?

Solution :-

According to the question,

We have to find that the how much craft paper is required to cover the match box

Therefore,

We know that,

Total surface area of the cuboid

= 2 ( lb + bh + hl)

Subsitute the required values :-

= 2 ( 4 * 2.5 + 2.5 * 1.5 + 1.5 * 4 )

= 2 ( 10 + 3.75 + 6 )

= 2 ( 16 + 3.75 )

= 2 * 19.75

= 39.5cm²

Hence, 39.5cm² paper is needed to cover the match box $.$

Answer 2

Given:-

• The length of the match box is 4 cm.
• The breath of the match box is 2.5 cm.
• The Height of the match box is 1.5 cm.

⠀

To Find:-

• Paper needed to cover the match box.

⠀

Solution:-

★ In this question we have given the length, breadth and height of the match box. We have to find out the paper needed to cover the match box. So, we have to find the total surface area of the match box. Let's do it.

⠀

According to the question,

We know that,

⇢ Total surface area of a cuboid = 2(lb + bh + hl)

⠀

⇢ 2(lb + bh + hl)

⇢ 2((4 × 2.5) + (2.5 × 1.5) + (1.5 × 4))

⇢ 2(10 + 3.75 + 6)

⇢ 2 (16 + 3.75)

⇢ 2(19.75)

⇢ 39.5cm²

⠀

Hence,

• 39.5cm² paper is needed to cover the match box.