Question

a machbox 5cm 3cm and 2cm and height its outerside is to pasted with craft paper how much will be required to fo so​

Answer 1

Answer:

yes I know this answer

Step-by-step explanation:

Length of the matchbox, l = 4 cm

Breadth of the matchbox, b = 2.5 cm

Height of the matchbox, h = 1.5 cm

∴ Surface area of the box

= 2(l × b + b × h + h × l)

= 2(4 × 2.5 + 2.5 × 1.5 + 1.5 × 4)

= 2(10 + 3.75 + 6)

= 2 × 19.75

= 39.5 cm2

Hence, 39.5 cm2 of the craft paper will be needed to cover the matchbox.

Answer 2

Answer:

Amount of paper required to cover the outer side of the matchbox is 62 cm².

Step by step Explanation:

Given that:

• Length of the matchbox = 5 cm
• Breadth of the matchbox = 3 cm
• Height of the matchbox = 2 cm

To Find:

• How much craft paper will be needed to cover the outer side of the matchbox??

Process:

To find the amount of craft paper needed to cover the outer side of the matchbox we will first need to find the total surface area of the matchbox using the formula:

Total surface area = 2(lb + bh + lh) sq. units

Where,

• l = Length
• b = Breadth
• h = Height

As we know area of outer side of the matchbox = Total surface area of the matchbox.

Hence, amount of paper needed = Total surface area (TSA) of the matchbox

Solution:

∵ Amount of paper needed = Total surface area of the matchbox

∴ Amount of paper needed = 2(lb + bh + lh) sq. units

Substituting the values,

2(5 × 3 + 3 × 2 × 5 × 2)

Multiplying the numbers,

2(15 + 6 + 10)

Opening the brackets,

2 × 31

Multiplying 2 by 19.75,

62

Hence, amount of paper required to cover the outer side of the matchbox is 62 cm².