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Q.4. As shown in the figure, four napkins all of the same size were made from a square piece of cloth of length 1 m. What length of lace will be required to trim all four sides of all the napkins?

 

Dear student,
We have,length of cloth=1m=100 cmlength of napkin=1002=50 cmPerimeter of 1 napkin=50+50+50+50=200 cmPerimeter of 4 napkins=4×200 cm=800 cmThus 800 cm or 8 m of lace is required to trim the sides of all four napkins.
Regards

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