140 X 60 = 8400cm2
5 X 8400cm2 = 42000cm2
So give the answer as 42000 cm^2 or 420m^2
Step-by-step explanation:
Perimeter of the table cloth = 2(l+b)
=2(140=60)
=2 X 200
=400
So, 400cm of lace is needed for one table cloth.
Lace needed for 5 tablecloths= 400 X 5 = 2000cm
Therefore 2000cm of lace is needed for 5 tablecloths
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Answers & Comments
140 X 60 = 8400cm2
5 X 8400cm2 = 42000cm2
So give the answer as 42000 cm^2 or 420m^2
Step-by-step explanation:
Perimeter of the table cloth = 2(l+b)
=2(140=60)
=2 X 200
=400
So, 400cm of lace is needed for one table cloth.
Lace needed for 5 tablecloths= 400 X 5 = 2000cm
Therefore 2000cm of lace is needed for 5 tablecloths