Question

The lid of a rectangular box of sides 40 cm by 10 cm is sealed all around with tape. What is the length of the tape required?



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Answer 1

Answer:

hence the lid will be rectangular,

so perimeter of lid = length of tape

we know that, perimeter of rectangle = 2(length+breadth)

so, perimeter of lid = 2(40+10)cm

= 2x50

= 100 cm

therefore, length of tape = 100cm or 1m

Answer 2

Answer:

100cm

Explanation:

perimeter of the lid =length  of the tape