A lid of rectangular box of sides 40 cm by 10 cm is sealed all around with tape such that there is any overlapping of 5cm off the tape . what is the length of the tape used?
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Answer :
- 100cm is the length of the tape used
- Overlapping is 105cm
Given :
- A lid of rectangular box of sides 40cm by 10cm is sealed all around with tape
- Overlapping of 5cm off the tape
To find :
- Length of the tape used
Solution :
Given ,
- Length is 40cm
- Breadth is 10cm
Length of tape required = Perimeter of rectangle
As we know that ,
- Perimeter of rectangle = 2(l + b)
where , l is length 40cm and b is breadth 10cm
》 Perimeter of rectangle = 2(length + breadth)
》 2(40 + 10)
》 2(50)
》 100cm
Hence , Length of the tape used is 100cm
Given that,
- Overlapping 5cm off the tape then ,
》 100 + 5
》 105cm
Hence Overlapping is 105cm
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