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CBSE Class 7 Answered

Four napkins all  of the same size were made from a square piece of cloth  of length 1m . What length of lace will be required to trim all four sides of all the napkins?  
Asked by poojapatole1132001 | 01 Jan, 2019, 08:23: PM
answered-by-expert Expert Answer
1 m = 100 cm
Side of one napkin = a = 100/4 = 25 cm
Perimeter = 4a = 100 cm
Perimeter of 4 napkins = 100 × 4 = 400 cm
400 cm = 4 m of lace will be required.
 
 
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