Question

the lid of a rectangular box of side 40cm by 10cm is sealed all around with tape. what is the length of the tape required​

Answer 1

Answer:

1 m

Step-by-step explanation:

Given that the lid of a rectangular box of side 40cm by 10cm is sealed all around with tape.

We need to find out the length of the tape required.

Tape can be applied on its outer boundary. Means we have to find the perimeter of the rectangle, which ultimately tell us the length of the tape required.

Let's say the length of the tape that is required is x.

Now,

Perimeter of rectangle = 2(l + b)

Where length is 40 cm and breadth is 10 cm. So,

x = 2(40 + 10)

x = 2(50)

x = 100

Also,

1 m = 100 cm

Therefore, the length of the tape that is required is 1 m.