Question

Meena hasa table cloth of length 2 meter and breadth 1 meter she wants to put a lace all around it she bought 10 meter of lace for this how many lace left

Answer 1

length of table = 2 m
breadth of table = 1 m
perimeter = 2( l + b )
=> 2(2+1)
=> 6 m
she bought lace = 10 m
Lace left with her = 10-6 m
=> 4m
hence 4 m of lace is left with her.

Answer 2

because table is rectangle and lace put around the table thats why we use perimeter of rectangle

perimeter of rectangle =2(l+b)
2(2 +1 ) =6
but she bought 10 meter lace
then (10 -6 )
4 meter lace left