Mathematics

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

Mensuration

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Answer

Given:

Length of the lid = 40 cm

Breadth of the lid = 10 cm

The length of the tape required will be equal to the perimeter of the rectangular lid.

Perimeter of rectangle = 2(length + breadth)

= 2(40 + 10) cm

= 2 × 50 cm

= 100 cm

= 1 m

Hence, the length of the tape required is 1 m.

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