Question

the length of rectangular field is 3 times its breadth if the breadth of the field is 3 1/2 m, find the perimeter of the rectangle ​

Answer 1

Answer:

28m

let l be the length and b be the breadth

b is 3.5 m

and l is 3b

so l is 3(3.5)= 10.5m

perimeter of a rectangle is 2(l+b)

=2(3.5+10.5)

=2(14)

=28m

Answer 2

Answer:

it's easy see dear you can consider l=x

b=31/2=15.5

l=15.5 x 3 = 46.9

so perimeter =2 x (l+b)

2 x(15.5+46.9)

2 x 62.4

124.8

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