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 used to seal the lid​

Answer 1

Answer:

100cm

Step-by-step explanation:

We need to find the perimeter.

Step 1 : formula

           2 x ( l + b)

Step 2 : substitute the values.

           2 x ( 40 + 10 )

Step 3 : Solve

           2 x ( 40 + 10 )

           =2 x 50cm

           =100cm

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