Question

the lid of a rectangular box of sides 40 cm by 10 cm is sealed all around with tape such that there is an overlapping of 5 cm of the tape. what is the length of the tape used? ​

Answer 1

Answer:

length of the tape used = 110 cm.

Step-by-step explanation:

To find the length of the tape used, we need to find the perimeter of the lid of the rectangular box, taking into account the overlapping of 5 cm of the tape.

The lid has two sides of length 40 cm and two sides of length 10 cm. Therefore, the perimeter of the lid is:

Perimeter = 2(40 cm + 10 cm) = 100 cm

However, we need to add the overlapping of 5 cm to each side of the lid, which gives us an extra length of 10 cm. Therefore, the total length of tape used is:

Total length of tape = Perimeter of the lid + extra length

= 100 cm + 10 cm

= 110 cm

Therefore, the length of the tape used is 110 cm.